diff --git a/visualc/vngspice.vcproj b/visualc/vngspice.vcproj
index 91af39764..aba6e9e47 100644
--- a/visualc/vngspice.vcproj
+++ b/visualc/vngspice.vcproj
@@ -315,7 +315,7 @@
 				FavorSizeOrSpeed="1"
 				WholeProgramOptimization="true"
 				AdditionalIncludeDirectories=""$(ProjectDir)..\src\maths\poly";"$(ProjectDir)..\src\frontend";"$(ProjectDir)..\src\spicelib\devices";"$(ProjectDir)include";"$(ProjectDir)..\src\include";"$(ProjectDir)..\src\spicelib\parser";"$(ProjectDir).""
-				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;XSPICE;CONFIG64;RELBUILD64"
+				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;XSPICE;CONFIG64"
 				MinimalRebuild="false"
 				ExceptionHandling="0"
 				BasicRuntimeChecks="0"
@@ -853,7 +853,7 @@
 				FavorSizeOrSpeed="1"
 				WholeProgramOptimization="true"
 				AdditionalIncludeDirectories=""$(ProjectDir)..\src\maths\poly";"$(ProjectDir)..\src\frontend";"$(ProjectDir)..\src\spicelib\devices";"$(ProjectDir)include";"$(ProjectDir)..\src\include";"$(ProjectDir)..\src\spicelib\parser";"$(ProjectDir).""
-				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;XSPICE;USE_OMP;CONFIG64;RELBUILD64"
+				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;XSPICE;USE_OMP;CONFIG64"
 				MinimalRebuild="false"
 				ExceptionHandling="0"
 				BasicRuntimeChecks="0"
@@ -1038,7 +1038,7 @@
 				FavorSizeOrSpeed="1"
 				WholeProgramOptimization="true"
 				AdditionalIncludeDirectories=""$(ProjectDir)..\src\maths\poly";"$(ProjectDir)..\src\frontend";"$(ProjectDir)..\src\spicelib\devices";"$(ProjectDir)include";"$(ProjectDir)..\src\include";"$(ProjectDir)..\src\spicelib\parser";"$(ProjectDir).""
-				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;XSPICE;CONSOLE;CONFIG64;RELBUILD64;USE_OMP"
+				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;XSPICE;CONSOLE;CONFIG64;USE_OMP"
 				MinimalRebuild="false"
 				ExceptionHandling="0"
 				BasicRuntimeChecks="0"
diff --git a/visualc/vngspice.vcxproj b/visualc/vngspice.vcxproj
index 3ad96eec5..47170190a 100644
--- a/visualc/vngspice.vcxproj
+++ b/visualc/vngspice.vcxproj
@@ -339,7 +339,7 @@
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <WholeProgramOptimization>true</WholeProgramOptimization>
       <AdditionalIncludeDirectories>$(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;XSPICE;CONFIG64;RELBUILD64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;XSPICE;CONFIG64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -609,7 +609,7 @@
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <WholeProgramOptimization>true</WholeProgramOptimization>
       <AdditionalIncludeDirectories>$(ProjectDir)..\src\maths\poly;$(ProjectDir)..\src\frontend;$(ProjectDir)..\src\spicelib\devices;$(ProjectDir)include;$(ProjectDir)..\src\include;$(ProjectDir)..\src\spicelib\parser;$(ProjectDir).;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;XSPICE;USE_OMP;CONFIG64;RELBUILD64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;XSPICE;USE_OMP;CONFIG64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -706,7 +706,7 @@
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <WholeProgramOptimization>true</WholeProgramOptimization>
       <AdditionalIncludeDirectories>$(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;XSPICE;CONSOLE;CONFIG64;RELBUILD64;USE_OMP;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;XSPICE;CONSOLE;CONFIG64;USE_OMP;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
       <ExceptionHandling>
       </ExceptionHandling>
diff --git a/visualc/vngspice_fftw.vcproj b/visualc/vngspice_fftw.vcproj
index d16dcbc3a..7450247cc 100644
--- a/visualc/vngspice_fftw.vcproj
+++ b/visualc/vngspice_fftw.vcproj
@@ -321,7 +321,7 @@
 				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)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll64&quot;"
-				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;XSPICE;CONFIG64;RELBUILD64;HAVE_LIBFFTW3"
+				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;XSPICE;CONFIG64;HAVE_LIBFFTW3"
 				MinimalRebuild="false"
 				ExceptionHandling="0"
 				BasicRuntimeChecks="0"
@@ -871,7 +871,7 @@
 				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)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll32&quot;"
-				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;XSPICE;USE_OMP;CONFIG64;RELBUILD64;HAVE_LIBFFTW3"
+				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;XSPICE;USE_OMP;CONFIG64;HAVE_LIBFFTW3"
 				MinimalRebuild="false"
 				ExceptionHandling="0"
 				BasicRuntimeChecks="0"
@@ -1060,7 +1060,7 @@
 				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)..\src\spicelib\parser&quot;;&quot;$(ProjectDir).&quot;;&quot;$(ProjectDir)fftw3\fftw-3.3.3-dll64&quot;"
-				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;XSPICE;CONSOLE;CONFIG64;RELBUILD64;USE_OMP;HAVE_LIBFFTW3"
+				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;SIMULATOR;XSPICE;CONSOLE;CONFIG64;USE_OMP;HAVE_LIBFFTW3"
 				MinimalRebuild="false"
 				ExceptionHandling="0"
 				BasicRuntimeChecks="0"
diff --git a/visualc/vngspice_fftw.vcxproj b/visualc/vngspice_fftw.vcxproj
index 2b1612c3c..77eb17123 100644
--- a/visualc/vngspice_fftw.vcxproj
+++ b/visualc/vngspice_fftw.vcxproj
@@ -356,7 +356,7 @@ lib /machine:x64 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.def /out:$(
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <WholeProgramOptimization>true</WholeProgramOptimization>
       <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;XSPICE;CONFIG64;RELBUILD64;HAVE_LIBFFTW3;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;XSPICE;CONFIG64;HAVE_LIBFFTW3;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -656,7 +656,7 @@ lib /machine:x64 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.def /out:$(
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <WholeProgramOptimization>true</WholeProgramOptimization>
       <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;XSPICE;USE_OMP;CONFIG64;RELBUILD64;HAVE_LIBFFTW3;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;XSPICE;USE_OMP;CONFIG64;HAVE_LIBFFTW3;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -763,7 +763,7 @@ lib /machine:x64 /def:$(ProjectDir)fftw3\fftw-3.3.3-dll64\libfftw3-3.def /out:$(
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <WholeProgramOptimization>true</WholeProgramOptimization>
       <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;XSPICE;CONSOLE;CONFIG64;RELBUILD64;USE_OMP;HAVE_LIBFFTW3;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_DEPRECATE;SIMULATOR;XSPICE;CONSOLE;CONFIG64;USE_OMP;HAVE_LIBFFTW3;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>false</MinimalRebuild>
       <ExceptionHandling>
       </ExceptionHandling>