diff --git a/visualc-shared/sharedspice.vcproj b/visualc-shared/sharedspice.vcproj
index e202fba1c..365dd0af7 100644
--- a/visualc-shared/sharedspice.vcproj
+++ b/visualc-shared/sharedspice.vcproj
@@ -23,7 +23,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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
@@ -115,7 +115,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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
@@ -207,7 +207,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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
diff --git a/visualc/vngspice.vcproj b/visualc/vngspice.vcproj
index b79d2562e..fb86343c5 100644
--- a/visualc/vngspice.vcproj
+++ b/visualc/vngspice.vcproj
@@ -27,7 +27,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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"
 			/>
@@ -115,7 +115,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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"
 			/>
@@ -203,7 +203,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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
@@ -295,7 +295,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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
@@ -386,7 +386,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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"
 			/>
@@ -472,7 +472,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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"
 			/>
@@ -560,7 +560,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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
@@ -651,7 +651,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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
@@ -743,7 +743,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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
@@ -835,7 +835,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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
@@ -928,7 +928,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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
@@ -1020,7 +1020,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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
diff --git a/visualc/vngspice.vcxproj b/visualc/vngspice.vcxproj
index 4820dbcc7..61461c93f 100644
--- a/visualc/vngspice.vcxproj
+++ b/visualc/vngspice.vcxproj
@@ -202,7 +202,7 @@
       <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>
+      <Message>Recompile conf.c with actual date, invoke win_bison</Message>
     </PreBuildEvent>
     <CustomBuildStep>
       <Message>
@@ -252,7 +252,7 @@
       <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>
+      <Message>Recompile conf.c with actual date, invoke win_bison</Message>
     </PreBuildEvent>
     <CustomBuildStep>
       <Message>
@@ -347,7 +347,7 @@
       <Command>del $(Configuration)\$(Platform)\conf.obj
 ..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
 ..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
-      <Message>Custom defined Build: Recompile conf.c with actual date</Message>
+      <Message>Recompile conf.c with actual date, invoke win_bison</Message>
     </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
@@ -407,7 +407,7 @@
 ..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
     </PreBuildEvent>
     <PreBuildEvent>
-      <Message>Custom defined Build: Recompile conf.c with actual date</Message>
+      <Message>Recompile conf.c with actual date, invoke win_bison</Message>
     </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='console_debug|Win32'">
@@ -415,7 +415,7 @@
       <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>
+      <Message>Recompile conf.c with actual date, invoke win_bison</Message>
     </PreBuildEvent>
     <CustomBuildStep>
       <Message>
@@ -462,7 +462,7 @@
       <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>
+      <Message>Recompile conf.c with actual date, invoke win_bison</Message>
     </PreBuildEvent>
     <CustomBuildStep>
       <Message>
@@ -556,7 +556,7 @@
       <Command>del $(Configuration)\$(Platform)\conf.obj
 ..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
 ..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
-      <Message>Custom defined Build: Recompile conf.c with actual date</Message>
+      <Message>Recompile conf.c with actual date, invoke win_bison</Message>
     </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='console_release|x64'">
@@ -613,7 +613,7 @@
 ..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
     </PreBuildEvent>
     <PreBuildEvent>
-      <Message>Custom defined Build: Recompile conf.c with actual date</Message>
+      <Message>Recompile conf.c with actual date, invoke win_bison</Message>
     </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseOMP|Win32'">
@@ -665,7 +665,7 @@
       <Command>del $(Configuration)\$(Platform)\conf.obj
 ..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
 ..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
-      <Message>Custom defined Build: Recompile conf.c with actual date</Message>
+      <Message>Recompile conf.c with actual date, invoke win_bison</Message>
     </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseOMP|x64'">
@@ -726,7 +726,7 @@
 ..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
     </PreBuildEvent>
     <PreBuildEvent>
-      <Message>Custom defined Build: Recompile conf.c with actual date</Message>
+      <Message>Recompile conf.c with actual date, invoke win_bison</Message>
     </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='console_release_omp|Win32'">
@@ -779,7 +779,7 @@
       <Command>del $(Configuration)\$(Platform)\conf.obj
 ..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
 ..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
-      <Message>Custom defined Build: Recompile conf.c with actual date</Message>
+      <Message>Recompile conf.c with actual date, invoke win_bison</Message>
     </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='console_release_omp|x64'">
@@ -837,7 +837,7 @@
 ..\..\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>
+      <Message>Recompile conf.c with actual date, invoke win_bison</Message>
     </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemGroup>
diff --git a/visualc/vngspice_fftw.vcproj b/visualc/vngspice_fftw.vcproj
index a429eff0d..c05ff625e 100644
--- a/visualc/vngspice_fftw.vcproj
+++ b/visualc/vngspice_fftw.vcproj
@@ -27,7 +27,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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"
 			/>
@@ -116,7 +116,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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"
 			/>
@@ -206,7 +206,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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
@@ -300,7 +300,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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
@@ -393,7 +393,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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"
 			/>
@@ -481,7 +481,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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"
 			/>
@@ -571,7 +571,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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
@@ -664,7 +664,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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
@@ -758,7 +758,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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
@@ -852,7 +852,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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
@@ -947,7 +947,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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
@@ -1041,7 +1041,7 @@
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
-				Description="Custom defined Build: Recompile conf.c with actual date"
+				Description="Recompile conf.c with actual date, invoke win_bison"
 				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:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.lib"
 			/>
 			<Tool
diff --git a/visualc/vngspice_fftw_vc10.vcxproj b/visualc/vngspice_fftw_vc10.vcxproj
index b3cc78008..00b011ea3 100644
--- a/visualc/vngspice_fftw_vc10.vcxproj
+++ b/visualc/vngspice_fftw_vc10.vcxproj
@@ -205,7 +205,7 @@
       <Command>lib /machine:x86 /def:$(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>Custom defined Build: Recompile conf.c with actual date</Message>
+      <Message>Recompile conf.c with actual date, invoke win_bison</Message>
       <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>
@@ -253,7 +253,7 @@
 </Command>
     </PreBuildEvent>
     <CustomBuildStep>
-      <Message>Custom defined Build: Recompile conf.c with actual date</Message>
+      <Message>Recompile conf.c with actual date, invoke win_bison</Message>
       <Command>del $(Configuration)64\$(Platform)\conf.obj
 ..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
 ..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
@@ -302,7 +302,7 @@
       <Command>lib /machine:x86 /def:$(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>Custom defined Build: Recompile conf.c with actual date</Message>
+      <Message>Recompile conf.c with actual date, invoke win_bison</Message>
       <Command>del $(Configuration)\$(Platform)\conf.obj
 ..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
 ..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
@@ -354,7 +354,7 @@
       <Command>lib /machine:x64 /def:$(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>Custom defined Build: Recompile conf.c with actual date</Message>
+      <Message>Recompile conf.c with actual date, invoke win_bison</Message>
       <Command>del $(Configuration)64\$(Platform)\conf.obj
 ..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
 ..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
@@ -411,7 +411,7 @@
       <Command>lib /machine:x86 /def:$(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>Custom defined Build: Recompile conf.c with actual date</Message>
+      <Message>Recompile conf.c with actual date, invoke win_bison</Message>
       <Command>del $(Configuration)\$(Platform)\conf.obj
 ..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
 ..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
@@ -457,7 +457,7 @@
       <Command>lib /machine:x64 /def:$(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>Custom defined Build: Recompile conf.c with actual date</Message>
+      <Message>Recompile conf.c with actual date, invoke win_bison</Message>
       <Command>del $(Configuration)64\$(Platform)\conf.obj
 ..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
 ..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
@@ -506,7 +506,7 @@
       <Command>lib /machine:x86 /def:$(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>Custom defined Build: Recompile conf.c with actual date</Message>
+      <Message>Recompile conf.c with actual date, invoke win_bison</Message>
       <Command>del $(Configuration)\$(Platform)\conf.obj
 ..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
 ..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
@@ -557,7 +557,7 @@
       <Command>lib /machine:x64 /def:$(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>Custom defined Build: Recompile conf.c with actual date</Message>
+      <Message>Recompile conf.c with actual date, invoke win_bison</Message>
       <Command>del $(Configuration)64\$(Platform)\conf.obj
 ..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
 ..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
@@ -611,7 +611,7 @@
       <Command>lib /machine:x86 /def:$(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>Custom defined Build: Recompile conf.c with actual date</Message>
+      <Message>Recompile conf.c with actual date, invoke win_bison</Message>
       <Command>del $(Configuration)\$(Platform)\conf.obj
 ..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
 ..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
@@ -663,7 +663,7 @@
       <Command>lib /machine:x64 /def:$(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>Custom defined Build: Recompile conf.c with actual date</Message>
+      <Message>Recompile conf.c with actual date, invoke win_bison</Message>
       <Command>del $(Configuration)64\$(Platform)\conf.obj
 ..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
 ..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
@@ -721,7 +721,7 @@
       <Command>lib /machine:x86 /def:$(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>Custom defined Build: Recompile conf.c with actual date</Message>
+      <Message>Recompile conf.c with actual date, invoke win_bison</Message>
       <Command>del $(Configuration)\$(Platform)\conf.obj
 ..\..\flex-bison\win_bison.exe --output=inpptree-parser.c --defines=inpptree-parser.h ..\src\spicelib\parser\inpptree-parser.y || exit 1
 ..\..\flex-bison\win_bison.exe --output=parse-bison.c --defines=parse-bison.h ..\src\frontend\parse-bison.y || exit 1</Command>
@@ -773,7 +773,7 @@
       <Command>lib /machine:x64 /def:$(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>Custom defined Build: Recompile conf.c with actual date</Message>
+      <Message>Recompile conf.c with actual date, invoke win_bison</Message>
       <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>