diff --git a/visualc/vngspice_fftw.vcxproj b/visualc/vngspice_fftw.vcxproj
index e161561d3..f0f827217 100644
--- a/visualc/vngspice_fftw.vcxproj
+++ b/visualc/vngspice_fftw.vcxproj
@@ -198,15 +198,12 @@
   </PropertyGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <PreBuildEvent>
-      <Command>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</Command>
-    </PreBuildEvent>
-    <CustomBuildStep>
       <Message>Recompile conf.c with actual date, invoke win_bison</Message>
       <Command>if exist $(Configuration)\$(Platform)\conf.obj 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>
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1
+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</Command>
+    </PreBuildEvent>
     <ClCompile>
       <Optimization>Disabled</Optimization>
       <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>
@@ -246,16 +243,12 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <PreBuildEvent>
-      <Command>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
-</Command>
-    </PreBuildEvent>
-    <CustomBuildStep>
       <Message>Recompile conf.c with actual date, invoke win_bison</Message>
       <Command>if exist $(Configuration)64\$(Platform)\conf.obj 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>
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1
+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</Command>
+    </PreBuildEvent>
     <Midl>
       <TargetEnvironment>X64</TargetEnvironment>
     </Midl>
@@ -297,15 +290,12 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <PreBuildEvent>
-      <Command>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</Command>
-    </PreBuildEvent>
-    <CustomBuildStep>
       <Message>Recompile conf.c with actual date, invoke win_bison</Message>
       <Command>if exist $(Configuration)\$(Platform)\conf.obj 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>
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1
+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</Command>
+    </PreBuildEvent>
     <ClCompile>
       <Optimization>MaxSpeed</Optimization>
       <IntrinsicFunctions>true</IntrinsicFunctions>
@@ -351,15 +341,12 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <PreBuildEvent>
-      <Command>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</Command>
-    </PreBuildEvent>
-    <CustomBuildStep>
       <Message>Recompile conf.c with actual date, invoke win_bison</Message>
       <Command>if exist $(Configuration)64\$(Platform)\conf.obj 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>
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1
+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</Command>
+    </PreBuildEvent>
     <Midl>
       <TargetEnvironment>X64</TargetEnvironment>
     </Midl>
@@ -409,15 +396,12 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='console_debug|Win32'">
     <PreBuildEvent>
-      <Command>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</Command>
-    </PreBuildEvent>
-    <CustomBuildStep>
       <Message>Recompile conf.c with actual date, invoke win_bison</Message>
       <Command>if exist $(Configuration)\$(Platform)\conf.obj 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>
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1
+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</Command>
+    </PreBuildEvent>
     <ClCompile>
       <Optimization>Disabled</Optimization>
       <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>
@@ -456,15 +440,12 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='console_debug|x64'">
     <PreBuildEvent>
-      <Command>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</Command>
-    </PreBuildEvent>
-    <CustomBuildStep>
       <Message>Recompile conf.c with actual date, invoke win_bison</Message>
       <Command>if exist $(Configuration)64\$(Platform)\conf.obj 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>
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1
+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</Command>
+    </PreBuildEvent>
     <Midl>
       <TargetEnvironment>X64</TargetEnvironment>
     </Midl>
@@ -506,15 +487,12 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='console_release|Win32'">
     <PreBuildEvent>
-      <Command>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</Command>
-    </PreBuildEvent>
-    <CustomBuildStep>
       <Message>Recompile conf.c with actual date, invoke win_bison</Message>
       <Command>if exist $(Configuration)\$(Platform)\conf.obj 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>
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1
+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</Command>
+    </PreBuildEvent>
     <ClCompile>
       <Optimization>MaxSpeed</Optimization>
       <IntrinsicFunctions>true</IntrinsicFunctions>
@@ -559,15 +537,12 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='console_release|x64'">
     <PreBuildEvent>
-      <Command>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</Command>
-    </PreBuildEvent>
-    <CustomBuildStep>
       <Message>Recompile conf.c with actual date, invoke win_bison</Message>
       <Command>if exist $(Configuration)64\$(Platform)\conf.obj 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>
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1
+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</Command>
+    </PreBuildEvent>
     <Midl>
       <TargetEnvironment>X64</TargetEnvironment>
     </Midl>
@@ -615,15 +590,12 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseOMP|Win32'">
     <PreBuildEvent>
-      <Command>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</Command>
-    </PreBuildEvent>
-    <CustomBuildStep>
       <Message>Recompile conf.c with actual date, invoke win_bison</Message>
       <Command>if exist $(Configuration)\$(Platform)\conf.obj 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>
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1
+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</Command>
+    </PreBuildEvent>
     <ClCompile>
       <Optimization>MaxSpeed</Optimization>
       <IntrinsicFunctions>true</IntrinsicFunctions>
@@ -669,15 +641,12 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseOMP|x64'">
     <PreBuildEvent>
-      <Command>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</Command>
-    </PreBuildEvent>
-    <CustomBuildStep>
       <Message>Recompile conf.c with actual date, invoke win_bison</Message>
       <Command>if exist $(Configuration)64\$(Platform)\conf.obj 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>
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1
+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</Command>
+    </PreBuildEvent>
     <Midl>
       <TargetEnvironment>X64</TargetEnvironment>
     </Midl>
@@ -728,15 +697,12 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='console_release_omp|Win32'">
     <PreBuildEvent>
-      <Command>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</Command>
-    </PreBuildEvent>
-    <CustomBuildStep>
       <Message>Recompile conf.c with actual date, invoke win_bison</Message>
       <Command>if exist $(Configuration)\$(Platform)\conf.obj 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>
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1
+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</Command>
+    </PreBuildEvent>
     <ClCompile>
       <Optimization>MaxSpeed</Optimization>
       <IntrinsicFunctions>true</IntrinsicFunctions>
@@ -782,15 +748,12 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='console_release_omp|x64'">
     <PreBuildEvent>
-      <Command>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</Command>
-    </PreBuildEvent>
-    <CustomBuildStep>
       <Message>Recompile conf.c with actual date, invoke win_bison</Message>
       <Command>if exist $(Configuration)64\$(Platform)\conf.obj 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>
+..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1
+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</Command>
+    </PreBuildEvent>
     <Midl>
       <TargetEnvironment>X64</TargetEnvironment>
     </Midl>