diff --git a/win32/Analysis/Analysis.vcproj b/win32/Analysis/Analysis.vcproj
index 3f93272847c..4eb0bf3eb99 100644
--- a/win32/Analysis/Analysis.vcproj
+++ b/win32/Analysis/Analysis.vcproj
@@ -28,9 +28,9 @@
 				RuntimeTypeInfo="TRUE"
 				UsePrecompiledHeader="0"
 				WarningLevel="3"
-				Detect64BitPortabilityProblems="TRUE"
+				Detect64BitPortabilityProblems="FALSE"
 				DebugInformationFormat="4"
-				DisableSpecificWarnings="4800;4244;4267"/>
+				DisableSpecificWarnings="4146,4800"/>
 			<Tool
 				Name="VCCustomBuildTool"/>
 			<Tool
@@ -72,7 +72,7 @@
 				WarningLevel="3"
 				Detect64BitPortabilityProblems="TRUE"
 				DebugInformationFormat="3"
-				DisableSpecificWarnings="4099;4800;4244;4267"/>
+				DisableSpecificWarnings="4146,4800"/>
 			<Tool
 				Name="VCCustomBuildTool"/>
 			<Tool
diff --git a/win32/CodeGen/CodeGen.vcproj b/win32/CodeGen/CodeGen.vcproj
index ef0c62a36f5..738a2318e9e 100644
--- a/win32/CodeGen/CodeGen.vcproj
+++ b/win32/CodeGen/CodeGen.vcproj
@@ -28,9 +28,9 @@
 				RuntimeTypeInfo="TRUE"
 				UsePrecompiledHeader="0"
 				WarningLevel="3"
-				Detect64BitPortabilityProblems="TRUE"
+				Detect64BitPortabilityProblems="FALSE"
 				DebugInformationFormat="4"
-				DisableSpecificWarnings="4800;4244;4267"/>
+				DisableSpecificWarnings="4146,4800"/>
 			<Tool
 				Name="VCCustomBuildTool"/>
 			<Tool
@@ -72,7 +72,7 @@
 				WarningLevel="3"
 				Detect64BitPortabilityProblems="TRUE"
 				DebugInformationFormat="3"
-				DisableSpecificWarnings="4099;4800;4244;4267"/>
+				DisableSpecificWarnings="4146,4800"/>
 			<Tool
 				Name="VCCustomBuildTool"/>
 			<Tool
diff --git a/win32/ExecutionEngine/ExecutionEngine.vcproj b/win32/ExecutionEngine/ExecutionEngine.vcproj
index 95a71df554e..b5e959bb427 100644
--- a/win32/ExecutionEngine/ExecutionEngine.vcproj
+++ b/win32/ExecutionEngine/ExecutionEngine.vcproj
@@ -28,9 +28,9 @@
 				RuntimeTypeInfo="TRUE"
 				UsePrecompiledHeader="0"
 				WarningLevel="3"
-				Detect64BitPortabilityProblems="TRUE"
+				Detect64BitPortabilityProblems="FALSE"
 				DebugInformationFormat="4"
-				DisableSpecificWarnings="4800;4244;4267"/>
+				DisableSpecificWarnings="4146,4800"/>
 			<Tool
 				Name="VCCustomBuildTool"/>
 			<Tool
@@ -72,7 +72,7 @@
 				WarningLevel="3"
 				Detect64BitPortabilityProblems="TRUE"
 				DebugInformationFormat="3"
-				DisableSpecificWarnings="4099;4800;4244;4267"/>
+				DisableSpecificWarnings="4146,4800"/>
 			<Tool
 				Name="VCCustomBuildTool"/>
 			<Tool
diff --git a/win32/Fibonacci/Fibonacci.vcproj b/win32/Fibonacci/Fibonacci.vcproj
index 175641bb4bd..2db0f237ce9 100644
--- a/win32/Fibonacci/Fibonacci.vcproj
+++ b/win32/Fibonacci/Fibonacci.vcproj
@@ -28,9 +28,9 @@
 				RuntimeTypeInfo="TRUE"
 				UsePrecompiledHeader="0"
 				WarningLevel="3"
-				Detect64BitPortabilityProblems="TRUE"
+				Detect64BitPortabilityProblems="FALSE"
 				DebugInformationFormat="4"
-				DisableSpecificWarnings="4099;4800;4244;4267"/>
+				DisableSpecificWarnings="4146,4800"/>
 			<Tool
 				Name="VCCustomBuildTool"/>
 			<Tool
@@ -85,7 +85,7 @@
 				WarningLevel="3"
 				Detect64BitPortabilityProblems="TRUE"
 				DebugInformationFormat="3"
-				DisableSpecificWarnings="4099;4800;4244;4267"/>
+				DisableSpecificWarnings="4146,4800"/>
 			<Tool
 				Name="VCCustomBuildTool"/>
 			<Tool
diff --git a/win32/Support/Support.vcproj b/win32/Support/Support.vcproj
index 825804ae213..1071aa0d0d2 100644
--- a/win32/Support/Support.vcproj
+++ b/win32/Support/Support.vcproj
@@ -29,9 +29,9 @@
 				RuntimeTypeInfo="TRUE"
 				UsePrecompiledHeader="0"
 				WarningLevel="3"
-				Detect64BitPortabilityProblems="TRUE"
+				Detect64BitPortabilityProblems="FALSE"
 				DebugInformationFormat="4"
-				DisableSpecificWarnings="4800;4244;4267"/>
+				DisableSpecificWarnings="4146,4800"/>
 			<Tool
 				Name="VCCustomBuildTool"/>
 			<Tool
@@ -73,7 +73,7 @@
 				WarningLevel="3"
 				Detect64BitPortabilityProblems="TRUE"
 				DebugInformationFormat="3"
-				DisableSpecificWarnings="4099;4800;4244;4267"/>
+				DisableSpecificWarnings="4146,4800"/>
 			<Tool
 				Name="VCCustomBuildTool"/>
 			<Tool
diff --git a/win32/System/System.vcproj b/win32/System/System.vcproj
index 74978566128..c63f020cd44 100644
--- a/win32/System/System.vcproj
+++ b/win32/System/System.vcproj
@@ -28,9 +28,9 @@
 				RuntimeTypeInfo="TRUE"
 				UsePrecompiledHeader="0"
 				WarningLevel="3"
-				Detect64BitPortabilityProblems="TRUE"
+				Detect64BitPortabilityProblems="FALSE"
 				DebugInformationFormat="4"
-				DisableSpecificWarnings="4800;4244;4267"/>
+				DisableSpecificWarnings="4146,4800"/>
 			<Tool
 				Name="VCCustomBuildTool"/>
 			<Tool
@@ -73,7 +73,7 @@
 				WarningLevel="3"
 				Detect64BitPortabilityProblems="TRUE"
 				DebugInformationFormat="3"
-				DisableSpecificWarnings="4099;4800;4244;4267"/>
+				DisableSpecificWarnings="4146,4800"/>
 			<Tool
 				Name="VCCustomBuildTool"/>
 			<Tool
diff --git a/win32/TableGen/TableGen.vcproj b/win32/TableGen/TableGen.vcproj
index de800362f74..ad872d192ff 100644
--- a/win32/TableGen/TableGen.vcproj
+++ b/win32/TableGen/TableGen.vcproj
@@ -28,9 +28,9 @@
 				RuntimeTypeInfo="TRUE"
 				UsePrecompiledHeader="0"
 				WarningLevel="3"
-				Detect64BitPortabilityProblems="TRUE"
+				Detect64BitPortabilityProblems="FALSE"
 				DebugInformationFormat="4"
-				DisableSpecificWarnings="4800;4244;4267"/>
+				DisableSpecificWarnings="4146,4800"/>
 			<Tool
 				Name="VCCustomBuildTool"/>
 			<Tool
@@ -81,7 +81,7 @@
 				WarningLevel="3"
 				Detect64BitPortabilityProblems="TRUE"
 				DebugInformationFormat="3"
-				DisableSpecificWarnings="4099;4800;4244;4267"/>
+				DisableSpecificWarnings="4146,4800"/>
 			<Tool
 				Name="VCCustomBuildTool"/>
 			<Tool
diff --git a/win32/Target/Target.vcproj b/win32/Target/Target.vcproj
index bc1249d7c1e..42c1309ebd2 100644
--- a/win32/Target/Target.vcproj
+++ b/win32/Target/Target.vcproj
@@ -28,9 +28,9 @@
 				RuntimeTypeInfo="TRUE"
 				UsePrecompiledHeader="0"
 				WarningLevel="3"
-				Detect64BitPortabilityProblems="TRUE"
+				Detect64BitPortabilityProblems="FALSE"
 				DebugInformationFormat="4"
-				DisableSpecificWarnings="4800;4244;4267"/>
+				DisableSpecificWarnings="4146,4800"/>
 			<Tool
 				Name="VCCustomBuildTool"/>
 			<Tool
@@ -72,7 +72,7 @@
 				WarningLevel="3"
 				Detect64BitPortabilityProblems="TRUE"
 				DebugInformationFormat="3"
-				DisableSpecificWarnings="4099;4800;4244;4267"/>
+				DisableSpecificWarnings="4146,4800"/>
 			<Tool
 				Name="VCCustomBuildTool"/>
 			<Tool
diff --git a/win32/Transforms/Transforms.vcproj b/win32/Transforms/Transforms.vcproj
index d9685f2b1de..c4897d9e0b8 100644
--- a/win32/Transforms/Transforms.vcproj
+++ b/win32/Transforms/Transforms.vcproj
@@ -28,9 +28,9 @@
 				RuntimeTypeInfo="TRUE"
 				UsePrecompiledHeader="0"
 				WarningLevel="3"
-				Detect64BitPortabilityProblems="TRUE"
+				Detect64BitPortabilityProblems="FALSE"
 				DebugInformationFormat="4"
-				DisableSpecificWarnings="4800;4244;4267"/>
+				DisableSpecificWarnings="4146,4800"/>
 			<Tool
 				Name="VCCustomBuildTool"/>
 			<Tool
@@ -72,7 +72,7 @@
 				WarningLevel="3"
 				Detect64BitPortabilityProblems="TRUE"
 				DebugInformationFormat="3"
-				DisableSpecificWarnings="4099;4800;4244;4267"/>
+				DisableSpecificWarnings="4146,4800"/>
 			<Tool
 				Name="VCCustomBuildTool"/>
 			<Tool
diff --git a/win32/VMCore/VMCore.vcproj b/win32/VMCore/VMCore.vcproj
index dd703945d3e..5f404465505 100644
--- a/win32/VMCore/VMCore.vcproj
+++ b/win32/VMCore/VMCore.vcproj
@@ -28,9 +28,9 @@
 				RuntimeTypeInfo="TRUE"
 				UsePrecompiledHeader="0"
 				WarningLevel="3"
-				Detect64BitPortabilityProblems="TRUE"
+				Detect64BitPortabilityProblems="FALSE"
 				DebugInformationFormat="4"
-				DisableSpecificWarnings="4800;4244;4267"/>
+				DisableSpecificWarnings="4146,4800"/>
 			<Tool
 				Name="VCCustomBuildTool"/>
 			<Tool
@@ -72,7 +72,7 @@
 				WarningLevel="3"
 				Detect64BitPortabilityProblems="TRUE"
 				DebugInformationFormat="3"
-				DisableSpecificWarnings="4099;4800;4244;4267"/>
+				DisableSpecificWarnings="4146,4800"/>
 			<Tool
 				Name="VCCustomBuildTool"/>
 			<Tool
diff --git a/win32/x86/x86.vcproj b/win32/x86/x86.vcproj
index 4e0fad0999b..ea979be094c 100644
--- a/win32/x86/x86.vcproj
+++ b/win32/x86/x86.vcproj
@@ -28,9 +28,9 @@
 				RuntimeTypeInfo="TRUE"
 				UsePrecompiledHeader="0"
 				WarningLevel="3"
-				Detect64BitPortabilityProblems="TRUE"
+				Detect64BitPortabilityProblems="FALSE"
 				DebugInformationFormat="4"
-				DisableSpecificWarnings="4800;4244;4267"/>
+				DisableSpecificWarnings="4146,4800"/>
 			<Tool
 				Name="VCCustomBuildTool"/>
 			<Tool
@@ -81,7 +81,7 @@
 				WarningLevel="3"
 				Detect64BitPortabilityProblems="TRUE"
 				DebugInformationFormat="3"
-				DisableSpecificWarnings="4099;4800;4244;4267"/>
+				DisableSpecificWarnings="4146,4800"/>
 			<Tool
 				Name="VCCustomBuildTool"/>
 			<Tool