diff --git a/visualc-shared/sharedspice.vcproj b/visualc-shared/sharedspice.vcproj
index 81228471d..07dbeaf53 100644
--- a/visualc-shared/sharedspice.vcproj
+++ b/visualc-shared/sharedspice.vcproj
@@ -23,12 +23,14 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)\conf.obj"
-				Outputs="$(ConfigurationName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -43,7 +45,7 @@
 				Name="VCCLCompilerTool"
 				UseUnicodeResponseFiles="false"
 				Optimization="0"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR"
 				GeneratePreprocessedFile="0"
 				MinimalRebuild="false"
@@ -113,12 +115,14 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)\conf.obj"
-				Outputs="$(ConfigurationName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -134,7 +138,7 @@
 				Optimization="3"
 				FavorSizeOrSpeed="1"
 				WholeProgramOptimization="true"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR"
 				MinimalRebuild="false"
 				ExceptionHandling="0"
@@ -203,12 +207,14 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)\conf.obj"
-				Outputs="$(ConfigurationName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -224,7 +230,7 @@
 				Optimization="3"
 				FavorSizeOrSpeed="1"
 				WholeProgramOptimization="true"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;USE_OMP"
 				MinimalRebuild="false"
 				ExceptionHandling="0"
diff --git a/visualc/how-to-ngspice-vstudio.txt b/visualc/how-to-ngspice-vstudio.txt
index 1a21e5335..ded4cb272 100644
--- a/visualc/how-to-ngspice-vstudio.txt
+++ b/visualc/how-to-ngspice-vstudio.txt
@@ -1,3 +1,20 @@
+For compilation with visual studio,
+  you need the GNU bison parser generator.
+
+A ready for windows compiled variant can be downloaded as
+  win_flex_bison-latest.zip
+from
+  http://sourceforge.net/projects/winflexbison/files/
+
+Create the directory
+  ../../flex-bison
+relative from this directory right here, and unzip there.
+
+We will invoke the win_bison.exe file
+ in this directory during the visual studio compilation.
+
+--------------
+
 H. Vogt 31.10.09
 (Translation of some commands from German to English is required)
 Many more details of ngspice usage under Windows is described
diff --git a/visualc/vngspice.vcproj b/visualc/vngspice.vcproj
index 94990023c..f4b332489 100644
--- a/visualc/vngspice.vcproj
+++ b/visualc/vngspice.vcproj
@@ -27,14 +27,15 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				CommandLine=""
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)\$(PlatformName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1"
 				ExcludedFromBuild="false"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)\$(PlatformName)\conf.obj"
-				Outputs="$(ConfigurationName)\$(PlatformName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -45,7 +46,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;NGDEBUG;XSPICE"
 				MinimalRebuild="true"
 				ExceptionHandling="0"
@@ -114,14 +115,15 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				CommandLine=""
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)64\$(PlatformName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1"
 				ExcludedFromBuild="false"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)64\$(PlatformName)\conf.obj"
-				Outputs="$(ConfigurationName)64\$(PlatformName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -133,7 +135,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;NGDEBUG;CONFIG64"
 				MinimalRebuild="true"
 				ExceptionHandling="0"
@@ -201,12 +203,14 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)\$(PlatformName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)\$(PlatformName)\conf.obj"
-				Outputs="$(ConfigurationName)\$(PlatformName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -220,7 +224,7 @@
 				EnableIntrinsicFunctions="true"
 				FavorSizeOrSpeed="1"
 				WholeProgramOptimization="true"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR"
 				MinimalRebuild="false"
 				ExceptionHandling="1"
@@ -291,12 +295,14 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)64\$(PlatformName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)64\$(PlatformName)\conf.obj"
-				Outputs="$(ConfigurationName)64\$(PlatformName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -311,7 +317,7 @@
 				EnableIntrinsicFunctions="true"
 				FavorSizeOrSpeed="1"
 				WholeProgramOptimization="true"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;CONFIG64;RELBUILD64"
 				MinimalRebuild="false"
 				ExceptionHandling="0"
@@ -380,14 +386,15 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				CommandLine=""
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)\$(PlatformName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1"
 				ExcludedFromBuild="false"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)\$(PlatformName)\conf.obj"
-				Outputs="$(ConfigurationName)\$(PlatformName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -398,7 +405,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;NGDEBUG;CONSOLE;XSPICE"
 				MinimalRebuild="true"
 				ExceptionHandling="0"
@@ -465,14 +472,15 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				CommandLine=""
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)64\$(PlatformName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1"
 				ExcludedFromBuild="false"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)64\$(PlatformName)\conf.obj"
-				Outputs="$(ConfigurationName)64\$(PlatformName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -484,7 +492,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;NGDEBUG;CONSOLE;CONFIG64"
 				MinimalRebuild="true"
 				ExceptionHandling="0"
@@ -552,12 +560,14 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)\$(PlatformName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)\$(PlatformName)\conf.obj"
-				Outputs="$(ConfigurationName)\$(PlatformName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -571,7 +581,7 @@
 				EnableIntrinsicFunctions="true"
 				FavorSizeOrSpeed="1"
 				WholeProgramOptimization="true"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;CONSOLE"
 				MinimalRebuild="false"
 				ExceptionHandling="1"
@@ -641,12 +651,14 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)64\$(PlatformName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)64\$(PlatformName)\conf.obj"
-				Outputs="$(ConfigurationName)64\$(PlatformName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -661,7 +673,7 @@
 				EnableIntrinsicFunctions="true"
 				FavorSizeOrSpeed="1"
 				WholeProgramOptimization="true"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;CONSOLE;CONFIG64"
 				MinimalRebuild="false"
 				ExceptionHandling="1"
@@ -731,12 +743,14 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)\$(PlatformName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)\$(PlatformName)\conf.obj"
-				Outputs="$(ConfigurationName)\$(PlatformName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -750,7 +764,7 @@
 				EnableIntrinsicFunctions="true"
 				FavorSizeOrSpeed="1"
 				WholeProgramOptimization="true"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;USE_OMP"
 				MinimalRebuild="false"
 				ExceptionHandling="1"
@@ -821,12 +835,14 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)64\$(PlatformName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)64\$(PlatformName)\conf.obj"
-				Outputs="$(ConfigurationName)64\$(PlatformName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -841,7 +857,7 @@
 				EnableIntrinsicFunctions="true"
 				FavorSizeOrSpeed="1"
 				WholeProgramOptimization="true"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;USE_OMP;CONFIG64;RELBUILD64"
 				MinimalRebuild="false"
 				ExceptionHandling="0"
@@ -912,12 +928,14 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)\$(PlatformName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)\$(PlatformName)\conf.obj"
-				Outputs="$(ConfigurationName)\$(PlatformName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -931,7 +949,7 @@
 				EnableIntrinsicFunctions="true"
 				FavorSizeOrSpeed="1"
 				WholeProgramOptimization="true"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;CONSOLE;USE_OMP"
 				MinimalRebuild="false"
 				ExceptionHandling="1"
@@ -1002,12 +1020,14 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)64\$(PlatformName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)64\$(PlatformName)\conf.obj"
-				Outputs="$(ConfigurationName)64\$(PlatformName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -1022,7 +1042,7 @@
 				EnableIntrinsicFunctions="true"
 				FavorSizeOrSpeed="1"
 				WholeProgramOptimization="true"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;CONSOLE;CONFIG64;RELBUILD64;USE_OMP"
 				MinimalRebuild="false"
 				ExceptionHandling="0"
diff --git a/visualc/vngspice.vcxproj b/visualc/vngspice.vcxproj
index 61a8cbe1e..567dc0c36 100644
--- a/visualc/vngspice.vcxproj
+++ b/visualc/vngspice.vcxproj
@@ -199,7 +199,9 @@
   </PropertyGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <PreBuildEvent>
-      <Command>del $(Configuration)\$(Platform)\conf.obj</Command>
+      <Command>del $(Configuration)\$(Platform)\conf.obj
+..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
       <Message>Custom defined Build: Recompile conf.c with actual date</Message>
     </PreBuildEvent>
     <CustomBuildStep>
@@ -212,7 +214,7 @@
     </CustomBuildStep>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)..\src\spicelib\parser;$(ProjectDir).;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;NGDEBUG;XSPICE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
       <ExceptionHandling>
@@ -247,7 +249,9 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <PreBuildEvent>
-      <Command>del $(Configuration)64\$(Platform)\conf.obj</Command>
+      <Command>del $(Configuration)64\$(Platform)\conf.obj
+..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
       <Message>Custom defined Build: Recompile conf.c with actual date</Message>
     </PreBuildEvent>
     <CustomBuildStep>
@@ -263,7 +267,7 @@
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)..\src\spicelib\parser;$(ProjectDir).;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;NGDEBUG;CONFIG64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>true</MinimalRebuild>
       <ExceptionHandling>
@@ -307,7 +311,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <WholeProgramOptimization>true</WholeProgramOptimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)..\src\spicelib\parser;$(ProjectDir).;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
       <ExceptionHandling>Sync</ExceptionHandling>
@@ -340,7 +344,9 @@
       <TargetMachine>MachineX86</TargetMachine>
     </Link>
     <PreBuildEvent>
-      <Command>del $(Configuration)\$(Platform)\conf.obj</Command>
+      <Command>del $(Configuration)\$(Platform)\conf.obj
+..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
       <Message>Custom defined Build: Recompile conf.c with actual date</Message>
     </PreBuildEvent>
   </ItemDefinitionGroup>
@@ -361,7 +367,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <WholeProgramOptimization>true</WholeProgramOptimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)..\src\spicelib\parser;$(ProjectDir).;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;CONFIG64;RELBUILD64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
       <ExceptionHandling>
@@ -396,7 +402,9 @@
       <TargetMachine>MachineX64</TargetMachine>
     </Link>
     <PreBuildEvent>
-      <Command>del $(Configuration)64\$(Platform)\conf.obj</Command>
+      <Command>del $(Configuration)64\$(Platform)\conf.obj
+..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
     </PreBuildEvent>
     <PreBuildEvent>
       <Message>Custom defined Build: Recompile conf.c with actual date</Message>
@@ -404,7 +412,9 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='console_debug|Win32'">
     <PreBuildEvent>
-      <Command>del $(Configuration)\$(Platform)\conf.obj</Command>
+      <Command>del $(Configuration)\$(Platform)\conf.obj
+..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
       <Message>Custom defined Build: Recompile conf.c with actual date</Message>
     </PreBuildEvent>
     <CustomBuildStep>
@@ -417,7 +427,7 @@
     </CustomBuildStep>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)..\src\spicelib\parser;$(ProjectDir).;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;NGDEBUG;CONSOLE;XSPICE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
       <ExceptionHandling>
@@ -449,7 +459,9 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='console_debug|x64'">
     <PreBuildEvent>
-      <Command>del $(Configuration)64\$(Platform)\conf.obj</Command>
+      <Command>del $(Configuration)64\$(Platform)\conf.obj
+..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
       <Message>Custom defined Build: Recompile conf.c with actual date</Message>
     </PreBuildEvent>
     <CustomBuildStep>
@@ -465,7 +477,7 @@
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)..\src\spicelib\parser;$(ProjectDir).;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;NGDEBUG;CONSOLE;CONFIG64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>true</MinimalRebuild>
       <ExceptionHandling>
@@ -509,7 +521,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <WholeProgramOptimization>true</WholeProgramOptimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)..\src\spicelib\parser;$(ProjectDir).;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
       <ExceptionHandling>Sync</ExceptionHandling>
@@ -541,7 +553,9 @@
       <TargetMachine>MachineX86</TargetMachine>
     </Link>
     <PreBuildEvent>
-      <Command>del $(Configuration)\$(Platform)\conf.obj</Command>
+      <Command>del $(Configuration)\$(Platform)\conf.obj
+..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
       <Message>Custom defined Build: Recompile conf.c with actual date</Message>
     </PreBuildEvent>
   </ItemDefinitionGroup>
@@ -562,7 +576,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <WholeProgramOptimization>true</WholeProgramOptimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)..\src\spicelib\parser;$(ProjectDir).;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;CONSOLE;CONFIG64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
       <ExceptionHandling>Sync</ExceptionHandling>
@@ -594,7 +608,9 @@
       <TargetMachine>MachineX64</TargetMachine>
     </Link>
     <PreBuildEvent>
-      <Command>del $(Configuration)64\$(Platform)\conf.obj</Command>
+      <Command>del $(Configuration)64\$(Platform)\conf.obj
+..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
     </PreBuildEvent>
     <PreBuildEvent>
       <Message>Custom defined Build: Recompile conf.c with actual date</Message>
@@ -614,7 +630,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <WholeProgramOptimization>true</WholeProgramOptimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)..\src\spicelib\parser;$(ProjectDir).;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;USE_OMP;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
       <ExceptionHandling>false</ExceptionHandling>
@@ -646,7 +662,9 @@
       <TargetMachine>MachineX86</TargetMachine>
     </Link>
     <PreBuildEvent>
-      <Command>del $(Configuration)\$(Platform)\conf.obj</Command>
+      <Command>del $(Configuration)\$(Platform)\conf.obj
+..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
       <Message>Custom defined Build: Recompile conf.c with actual date</Message>
     </PreBuildEvent>
   </ItemDefinitionGroup>
@@ -667,7 +685,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <WholeProgramOptimization>true</WholeProgramOptimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)..\src\spicelib\parser;$(ProjectDir).;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;USE_OMP;CONFIG64;RELBUILD64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
       <ExceptionHandling>
@@ -703,7 +721,9 @@
       <TargetMachine>MachineX64</TargetMachine>
     </Link>
     <PreBuildEvent>
-      <Command>del $(Configuration)64\$(Platform)\conf.obj</Command>
+      <Command>del $(Configuration)64\$(Platform)\conf.obj
+..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
     </PreBuildEvent>
     <PreBuildEvent>
       <Message>Custom defined Build: Recompile conf.c with actual date</Message>
@@ -723,7 +743,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <WholeProgramOptimization>true</WholeProgramOptimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)..\src\spicelib\parser;$(ProjectDir).;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;CONSOLE;USE_OMP;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
       <ExceptionHandling>Sync</ExceptionHandling>
@@ -756,7 +776,9 @@
       <TargetMachine>MachineX86</TargetMachine>
     </Link>
     <PreBuildEvent>
-      <Command>del $(Configuration)\$(Platform)\conf.obj</Command>
+      <Command>del $(Configuration)\$(Platform)\conf.obj
+..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
       <Message>Custom defined Build: Recompile conf.c with actual date</Message>
     </PreBuildEvent>
   </ItemDefinitionGroup>
@@ -777,7 +799,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <WholeProgramOptimization>true</WholeProgramOptimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)..\src\spicelib\parser;$(ProjectDir).;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;CONSOLE;CONFIG64;RELBUILD64;USE_OMP;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
       <ExceptionHandling>
@@ -810,7 +832,9 @@
       <TargetMachine>MachineX64</TargetMachine>
     </Link>
     <PreBuildEvent>
-      <Command>del $(Configuration)64\$(Platform)\conf.obj</Command>
+      <Command>del $(Configuration)64\$(Platform)\conf.obj
+..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
     </PreBuildEvent>
     <PreBuildEvent>
       <Message>Custom defined Build: Recompile conf.c with actual date</Message>
diff --git a/visualc/vngspice_fftw.vcproj b/visualc/vngspice_fftw.vcproj
index 9bbbf1126..4c6e8e3a2 100644
--- a/visualc/vngspice_fftw.vcproj
+++ b/visualc/vngspice_fftw.vcproj
@@ -27,14 +27,15 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				CommandLine="lib /machine:x86 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll32\libfftw3-3.def /out:$(ProjectDir)fftw3\fftw-3.3.3-dll32\libfftw3-3.lib"
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)\$(PlatformName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1&#x0D;&#x0A;lib /machine:x86 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll32\libfftw3-3.def /out:$(ProjectDir)fftw3\fftw-3.3.3-dll32\libfftw3-3.lib"
 				ExcludedFromBuild="false"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)\$(PlatformName)\conf.obj"
-				Outputs="$(ConfigurationName)\$(PlatformName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -45,7 +46,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll32&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll32&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;NGDEBUG;XSPICE;HAVE_LIBFFTW3"
 				MinimalRebuild="true"
 				ExceptionHandling="0"
@@ -115,14 +116,15 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				CommandLine="lib /machine:x64 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.def /out:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.lib&#x0D;&#x0A;"
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)64\$(PlatformName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1&#x0D;&#x0A;lib /machine:x64 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.def /out:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.lib"
 				ExcludedFromBuild="false"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)64\$(PlatformName)\conf.obj"
-				Outputs="$(ConfigurationName)64\$(PlatformName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -134,7 +136,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll64&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll64&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;NGDEBUG;CONFIG64;HAVE_LIBFFTW3"
 				MinimalRebuild="true"
 				ExceptionHandling="0"
@@ -204,13 +206,14 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				CommandLine="lib /machine:x86 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll32\libfftw3-3.def /out:$(ProjectDir)fftw3\fftw-3.3.3-dll32\libfftw3-3.lib"
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)\$(PlatformName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1&#x0D;&#x0A;lib /machine:x86 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll32\libfftw3-3.def /out:$(ProjectDir)fftw3\fftw-3.3.3-dll32\libfftw3-3.lib"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)\$(PlatformName)\conf.obj"
-				Outputs="$(ConfigurationName)\$(PlatformName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -224,7 +227,7 @@
 				EnableIntrinsicFunctions="true"
 				FavorSizeOrSpeed="1"
 				WholeProgramOptimization="true"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll32&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll32&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;HAVE_LIBFFTW3"
 				MinimalRebuild="false"
 				ExceptionHandling="1"
@@ -297,13 +300,14 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				CommandLine="lib /machine:x64 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.def /out:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.lib"
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)64\$(PlatformName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1&#x0D;&#x0A;lib /machine:x64 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.def /out:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.lib"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)64\$(PlatformName)\conf.obj"
-				Outputs="$(ConfigurationName)64\$(PlatformName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -318,7 +322,7 @@
 				EnableIntrinsicFunctions="true"
 				FavorSizeOrSpeed="1"
 				WholeProgramOptimization="true"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll64&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll64&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;CONFIG64;RELBUILD64;HAVE_LIBFFTW3"
 				MinimalRebuild="false"
 				ExceptionHandling="0"
@@ -389,14 +393,15 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				CommandLine="lib /machine:x86 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll32\libfftw3-3.def /out:$(ProjectDir)fftw3\fftw-3.3.3-dll32\libfftw3-3.lib"
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)\$(PlatformName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1&#x0D;&#x0A;lib /machine:x86 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll32\libfftw3-3.def /out:$(ProjectDir)fftw3\fftw-3.3.3-dll32\libfftw3-3.lib"
 				ExcludedFromBuild="false"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)\$(PlatformName)\conf.obj"
-				Outputs="$(ConfigurationName)\$(PlatformName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -407,7 +412,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll32&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll32&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;NGDEBUG;CONSOLE;XSPICE;HAVE_LIBFFTW3"
 				MinimalRebuild="true"
 				ExceptionHandling="0"
@@ -476,14 +481,15 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				CommandLine="lib /machine:x64 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.def /out:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.lib"
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)64\$(PlatformName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1&#x0D;&#x0A;lib /machine:x64 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.def /out:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.lib"
 				ExcludedFromBuild="false"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)64\$(PlatformName)\conf.obj"
-				Outputs="$(ConfigurationName)64\$(PlatformName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -495,7 +501,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll64&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll64&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;NGDEBUG;CONSOLE;CONFIG64;HAVE_LIBFFTW3"
 				MinimalRebuild="true"
 				ExceptionHandling="0"
@@ -565,13 +571,14 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				CommandLine="lib /machine:x86 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll32\libfftw3-3.def /out:$(ProjectDir)fftw3\fftw-3.3.3-dll32\libfftw3-3.lib"
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)\$(PlatformName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1&#x0D;&#x0A;lib /machine:x86 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll32\libfftw3-3.def /out:$(ProjectDir)fftw3\fftw-3.3.3-dll32\libfftw3-3.lib"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)\$(PlatformName)\conf.obj"
-				Outputs="$(ConfigurationName)\$(PlatformName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -585,7 +592,7 @@
 				EnableIntrinsicFunctions="true"
 				FavorSizeOrSpeed="1"
 				WholeProgramOptimization="true"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll32&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll32&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;CONSOLE;HAVE_LIBFFTW3"
 				MinimalRebuild="false"
 				ExceptionHandling="1"
@@ -657,13 +664,14 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				CommandLine="lib /machine:x64 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.def /out:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.lib"
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)64\$(PlatformName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1&#x0D;&#x0A;lib /machine:x64 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.def /out:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.lib"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)64\$(PlatformName)\conf.obj"
-				Outputs="$(ConfigurationName)64\$(PlatformName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -678,7 +686,7 @@
 				EnableIntrinsicFunctions="true"
 				FavorSizeOrSpeed="1"
 				WholeProgramOptimization="true"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll64&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll64&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;CONSOLE;CONFIG64;HAVE_LIBFFTW3"
 				MinimalRebuild="false"
 				ExceptionHandling="1"
@@ -750,13 +758,14 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				CommandLine="lib /machine:x86 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll32\libfftw3-3.def /out:$(ProjectDir)fftw3\fftw-3.3.3-dll32\libfftw3-3.lib"
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)\$(PlatformName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1&#x0D;&#x0A;lib /machine:x86 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll32\libfftw3-3.def /out:$(ProjectDir)fftw3\fftw-3.3.3-dll32\libfftw3-3.lib"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)\$(PlatformName)\conf.obj"
-				Outputs="$(ConfigurationName)\$(PlatformName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -770,7 +779,7 @@
 				EnableIntrinsicFunctions="true"
 				FavorSizeOrSpeed="1"
 				WholeProgramOptimization="true"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll32&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll32&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;USE_OMP;HAVE_LIBFFTW3"
 				MinimalRebuild="false"
 				ExceptionHandling="1"
@@ -843,13 +852,14 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				CommandLine="lib /machine:x64 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.def /out:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.lib"
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)64\$(PlatformName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1&#x0D;&#x0A;lib /machine:x64 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.def /out:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.lib"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)64\$(PlatformName)\conf.obj"
-				Outputs="$(ConfigurationName)64\$(PlatformName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -864,7 +874,7 @@
 				EnableIntrinsicFunctions="true"
 				FavorSizeOrSpeed="1"
 				WholeProgramOptimization="true"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll32&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll32&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;USE_OMP;CONFIG64;RELBUILD64;HAVE_LIBFFTW3"
 				MinimalRebuild="false"
 				ExceptionHandling="0"
@@ -937,13 +947,14 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				CommandLine="lib /machine:x86 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll32\libfftw3-3.def /out:$(ProjectDir)fftw3\fftw-3.3.3-dll32\libfftw3-3.lib"
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)\$(PlatformName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1&#x0D;&#x0A;lib /machine:x86 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll32\libfftw3-3.def /out:$(ProjectDir)fftw3\fftw-3.3.3-dll32\libfftw3-3.lib"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)\$(PlatformName)\conf.obj"
-				Outputs="$(ConfigurationName)\$(PlatformName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -957,7 +968,7 @@
 				EnableIntrinsicFunctions="true"
 				FavorSizeOrSpeed="1"
 				WholeProgramOptimization="true"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll32&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll32&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;CONSOLE;USE_OMP;HAVE_LIBFFTW3"
 				MinimalRebuild="false"
 				ExceptionHandling="1"
@@ -1030,13 +1041,14 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				CommandLine="lib /machine:x64 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.def /out:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.lib"
+				Description="Custom defined Build: Recompile conf.c with actual date"
+				CommandLine="del $(ConfigurationName)64\$(PlatformName)\conf.obj&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1&#x0D;&#x0A;..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1&#x0D;&#x0A;lib /machine:x64 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.def /out:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.lib"
 			/>
 			<Tool
 				Name="VCCustomBuildTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
-				CommandLine="del $(ConfigurationName)64\$(PlatformName)\conf.obj"
-				Outputs="$(ConfigurationName)64\$(PlatformName)\conf.obj"
+				Description=""
+				CommandLine=""
+				Outputs=""
 			/>
 			<Tool
 				Name="VCXMLDataGeneratorTool"
@@ -1051,7 +1063,7 @@
 				EnableIntrinsicFunctions="true"
 				FavorSizeOrSpeed="1"
 				WholeProgramOptimization="true"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll64&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)..\src\maths\poly&quot;;&quot;$(ProjectDir)..\src\frontend&quot;;&quot;$(ProjectDir)..\src\spicelib\devices&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\src\include&quot;;&quot;$(ProjectDir)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll64&quot;"
 				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;CONSOLE;CONFIG64;RELBUILD64;USE_OMP;HAVE_LIBFFTW3"
 				MinimalRebuild="false"
 				ExceptionHandling="0"
diff --git a/visualc/vngspice_fftw_vc10.vcxproj b/visualc/vngspice_fftw_vc10.vcxproj
index 08ff1e08b..8510bafce 100644
--- a/visualc/vngspice_fftw_vc10.vcxproj
+++ b/visualc/vngspice_fftw_vc10.vcxproj
@@ -206,12 +206,14 @@
     </PreBuildEvent>
     <CustomBuildStep>
       <Message>Custom defined Build: Recompile conf.c with actual date</Message>
-      <Command>del $(Configuration)\$(Platform)\conf.obj</Command>
+      <Command>del $(Configuration)\$(Platform)\conf.obj
+..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
       <Outputs>$(Configuration)\$(Platform)\conf.obj;%(Outputs)</Outputs>
     </CustomBuildStep>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)fftw3\fftw-3.3.3-dll32;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)..\src\spicelib\parser;$(ProjectDir).;$(ProjectDir)fftw3\fftw-3.3.3-dll32;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;NGDEBUG;XSPICE;HAVE_LIBFFTW3;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>true</MinimalRebuild>
       <ExceptionHandling>
@@ -252,7 +254,9 @@
     </PreBuildEvent>
     <CustomBuildStep>
       <Message>Custom defined Build: Recompile conf.c with actual date</Message>
-      <Command>del $(Configuration)64\$(Platform)\conf.obj</Command>
+      <Command>del $(Configuration)64\$(Platform)\conf.obj
+..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
       <Outputs>$(Configuration)64\$(Platform)\conf.obj;%(Outputs)</Outputs>
     </CustomBuildStep>
     <Midl>
@@ -260,7 +264,7 @@
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)fftw3\fftw-3.3.3-dll64;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)..\src\spicelib\parser;$(ProjectDir).;$(ProjectDir)fftw3\fftw-3.3.3-dll64;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;NGDEBUG;CONFIG64;HAVE_LIBFFTW3;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>true</MinimalRebuild>
       <ExceptionHandling>
@@ -299,7 +303,9 @@
     </PreBuildEvent>
     <CustomBuildStep>
       <Message>Custom defined Build: Recompile conf.c with actual date</Message>
-      <Command>del $(Configuration)\$(Platform)\conf.obj</Command>
+      <Command>del $(Configuration)\$(Platform)\conf.obj
+..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
       <Outputs>$(Configuration)\$(Platform)\conf.obj;%(Outputs)</Outputs>
     </CustomBuildStep>
     <ClCompile>
@@ -307,7 +313,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <WholeProgramOptimization>true</WholeProgramOptimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)fftw3\fftw-3.3.3-dll32;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)..\src\spicelib\parser;$(ProjectDir).;$(ProjectDir)fftw3\fftw-3.3.3-dll32;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;HAVE_LIBFFTW3;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
       <ExceptionHandling>Sync</ExceptionHandling>
@@ -349,7 +355,9 @@
     </PreBuildEvent>
     <CustomBuildStep>
       <Message>Custom defined Build: Recompile conf.c with actual date</Message>
-      <Command>del $(Configuration)64\$(Platform)\conf.obj</Command>
+      <Command>del $(Configuration)64\$(Platform)\conf.obj
+..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
       <Outputs>$(Configuration)64\$(Platform)\conf.obj;%(Outputs)</Outputs>
     </CustomBuildStep>
     <Midl>
@@ -360,7 +368,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <WholeProgramOptimization>true</WholeProgramOptimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)fftw3\fftw-3.3.3-dll64;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)..\src\spicelib\parser;$(ProjectDir).;$(ProjectDir)fftw3\fftw-3.3.3-dll64;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;CONFIG64;RELBUILD64;HAVE_LIBFFTW3;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
       <ExceptionHandling>
@@ -404,12 +412,14 @@
     </PreBuildEvent>
     <CustomBuildStep>
       <Message>Custom defined Build: Recompile conf.c with actual date</Message>
-      <Command>del $(Configuration)\$(Platform)\conf.obj</Command>
+      <Command>del $(Configuration)\$(Platform)\conf.obj
+..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
       <Outputs>$(Configuration)\$(Platform)\conf.obj;%(Outputs)</Outputs>
     </CustomBuildStep>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)fftw3\fftw-3.3.3-dll32;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)..\src\spicelib\parser;$(ProjectDir).;$(ProjectDir)fftw3\fftw-3.3.3-dll32;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;NGDEBUG;CONSOLE;XSPICE;HAVE_LIBFFTW3;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>true</MinimalRebuild>
       <ExceptionHandling>
@@ -448,7 +458,9 @@
     </PreBuildEvent>
     <CustomBuildStep>
       <Message>Custom defined Build: Recompile conf.c with actual date</Message>
-      <Command>del $(Configuration)64\$(Platform)\conf.obj</Command>
+      <Command>del $(Configuration)64\$(Platform)\conf.obj
+..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
       <Outputs>$(Configuration)64\$(Platform)\conf.obj;%(Outputs)</Outputs>
     </CustomBuildStep>
     <Midl>
@@ -456,7 +468,7 @@
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)fftw3\fftw-3.3.3-dll64;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)..\src\spicelib\parser;$(ProjectDir).;$(ProjectDir)fftw3\fftw-3.3.3-dll64;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;NGDEBUG;CONSOLE;CONFIG64;HAVE_LIBFFTW3;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>true</MinimalRebuild>
       <ExceptionHandling>
@@ -495,7 +507,9 @@
     </PreBuildEvent>
     <CustomBuildStep>
       <Message>Custom defined Build: Recompile conf.c with actual date</Message>
-      <Command>del $(Configuration)\$(Platform)\conf.obj</Command>
+      <Command>del $(Configuration)\$(Platform)\conf.obj
+..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
       <Outputs>$(Configuration)\$(Platform)\conf.obj;%(Outputs)</Outputs>
     </CustomBuildStep>
     <ClCompile>
@@ -503,7 +517,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <WholeProgramOptimization>true</WholeProgramOptimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)fftw3\fftw-3.3.3-dll32;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)..\src\spicelib\parser;$(ProjectDir).;$(ProjectDir)fftw3\fftw-3.3.3-dll32;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;CONSOLE;HAVE_LIBFFTW3;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
       <ExceptionHandling>Sync</ExceptionHandling>
@@ -544,7 +558,9 @@
     </PreBuildEvent>
     <CustomBuildStep>
       <Message>Custom defined Build: Recompile conf.c with actual date</Message>
-      <Command>del $(Configuration)64\$(Platform)\conf.obj</Command>
+      <Command>del $(Configuration)64\$(Platform)\conf.obj
+..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
       <Outputs>$(Configuration)64\$(Platform)\conf.obj;%(Outputs)</Outputs>
     </CustomBuildStep>
     <Midl>
@@ -555,7 +571,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <WholeProgramOptimization>true</WholeProgramOptimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)fftw3\fftw-3.3.3-dll64;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)..\src\spicelib\parser;$(ProjectDir).;$(ProjectDir)fftw3\fftw-3.3.3-dll64;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;CONSOLE;CONFIG64;HAVE_LIBFFTW3;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
       <ExceptionHandling>Sync</ExceptionHandling>
@@ -596,7 +612,9 @@
     </PreBuildEvent>
     <CustomBuildStep>
       <Message>Custom defined Build: Recompile conf.c with actual date</Message>
-      <Command>del $(Configuration)\$(Platform)\conf.obj</Command>
+      <Command>del $(Configuration)\$(Platform)\conf.obj
+..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
       <Outputs>$(Configuration)\$(Platform)\conf.obj;%(Outputs)</Outputs>
     </CustomBuildStep>
     <ClCompile>
@@ -604,7 +622,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <WholeProgramOptimization>true</WholeProgramOptimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)fftw3\fftw-3.3.3-dll32;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)..\src\spicelib\parser;$(ProjectDir).;$(ProjectDir)fftw3\fftw-3.3.3-dll32;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;USE_OMP;HAVE_LIBFFTW3;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
       <ExceptionHandling>Sync</ExceptionHandling>
@@ -646,7 +664,9 @@
     </PreBuildEvent>
     <CustomBuildStep>
       <Message>Custom defined Build: Recompile conf.c with actual date</Message>
-      <Command>del $(Configuration)64\$(Platform)\conf.obj</Command>
+      <Command>del $(Configuration)64\$(Platform)\conf.obj
+..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
       <Outputs>$(Configuration)64\$(Platform)\conf.obj;%(Outputs)</Outputs>
     </CustomBuildStep>
     <Midl>
@@ -657,7 +677,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <WholeProgramOptimization>true</WholeProgramOptimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)fftw3\fftw-3.3.3-dll32;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)..\src\spicelib\parser;$(ProjectDir).;$(ProjectDir)fftw3\fftw-3.3.3-dll32;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;USE_OMP;CONFIG64;RELBUILD64;HAVE_LIBFFTW3;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
       <ExceptionHandling>
@@ -702,7 +722,9 @@
     </PreBuildEvent>
     <CustomBuildStep>
       <Message>Custom defined Build: Recompile conf.c with actual date</Message>
-      <Command>del $(Configuration)\$(Platform)\conf.obj</Command>
+      <Command>del $(Configuration)\$(Platform)\conf.obj
+..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
       <Outputs>$(Configuration)\$(Platform)\conf.obj;%(Outputs)</Outputs>
     </CustomBuildStep>
     <ClCompile>
@@ -710,7 +732,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <WholeProgramOptimization>true</WholeProgramOptimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)fftw3\fftw-3.3.3-dll32;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)..\src\spicelib\parser;$(ProjectDir).;$(ProjectDir)fftw3\fftw-3.3.3-dll32;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;CONSOLE;USE_OMP;HAVE_LIBFFTW3;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
       <ExceptionHandling>Sync</ExceptionHandling>
@@ -752,7 +774,9 @@
     </PreBuildEvent>
     <CustomBuildStep>
       <Message>Custom defined Build: Recompile conf.c with actual date</Message>
-      <Command>del $(Configuration)64\$(Platform)\conf.obj</Command>
+      <Command>del $(Configuration)64\$(Platform)\conf.obj
+..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
       <Outputs>$(Configuration)64\$(Platform)\conf.obj;%(Outputs)</Outputs>
     </CustomBuildStep>
     <Midl>
@@ -763,7 +787,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <WholeProgramOptimization>true</WholeProgramOptimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)fftw3\fftw-3.3.3-dll64;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)..\src\spicelib\parser;$(ProjectDir).;$(ProjectDir)fftw3\fftw-3.3.3-dll64;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;CONSOLE;CONFIG64;RELBUILD64;USE_OMP;HAVE_LIBFFTW3;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
       <ExceptionHandling>