diff --git a/projects/agalib.dsp b/projects/agalib.dsp
index ec4ace901..f5190f6c2 100755
--- a/projects/agalib.dsp
+++ b/projects/agalib.dsp
@@ -46,6 +46,7 @@ AgaLib=link.exe -lib
 WxLib32=link.exe -lib
 # ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /YX /FD /c
 # ADD CPP /nologo /MT /W3 /O2 /I "..\xvaga" /I "..\xi" /I "..\include" /I "..\gfm" /D "NDEBUG" /D "WIN32" /D "_WINDOWS" /D "CB6" /YX /FD /c
+# SUBTRACT CPP /Z<none>
 # ADD BASE RSC /l 0x410
 # ADD RSC /l 0x410
 BSC32=bscmake.exe
diff --git a/projects/xvagadll.dsp b/projects/xvagadll.dsp
index 045e3c3e3..af1bd8b50 100755
--- a/projects/xvagadll.dsp
+++ b/projects/xvagadll.dsp
@@ -44,6 +44,7 @@ RSC=rc.exe
 # PROP Target_Dir ""
 # ADD BASE CPP /nologo /MT /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "XVAGADLL_EXPORTS" /YX /FD /c
 # ADD CPP /nologo /MT /W3 /GX /I "..\..\wx240\lib\mswdlld" /I "..\..\wx240\include" /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D XVAGADLL=1 /YX /FD /c
+# SUBTRACT CPP /Z<none>
 # ADD BASE MTL /nologo /D "NDEBUG" /mktyplib203 /win32
 # ADD MTL /nologo /D "NDEBUG" /mktyplib203 /win32
 # ADD BASE RSC /l 0x410 /d "NDEBUG"