add user info

ChangeLog

@@ -1,3 +1,7 @@
+2008-11-04 Holger Vogt
+ * src/frontend/com_ghelp.c:
+   Notify user that internal help is no longer available in Windows port 
+
 2008-11-04 Paolo Nenzi
  * src/frontend/parser/lexical.c: 
    53: Fixed the problem of segmentation fault when redirecting output putting spaces

src/frontend/com_ghelp.c

@@ -72,4 +72,9 @@ com_ghelp(wordlist *wl)
     hlp_main(path, wl);
     return;
 #endif /* X_DISPLAY_MISSING 1  */
+#ifdef HAS_WINDOWS
+    printf("Internal help is no longer avaialable!\n");
+    printf("Please check for\n");
+    printf("http://newton.ex.ac.uk/teaching/CDHW/Electronics2/userguide/\n"); 
+#endif
 }