diff --git a/projectfiles/VC9/liblua.vcproj b/projectfiles/VC9/liblua.vcproj
index f4593e7ea56..fbf7b7485ec 100644
--- a/projectfiles/VC9/liblua.vcproj
+++ b/projectfiles/VC9/liblua.vcproj
@@ -47,8 +47,9 @@
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="3"
 				UsePrecompiledHeader="0"
-				WarningLevel="3"
+				WarningLevel="4"
 				DebugInformationFormat="4"
+				DisableSpecificWarnings="4127;4512;4706"
 			/>
 			<Tool
 				Name="VCManagedResourceCompilerTool"
diff --git a/projectfiles/VC9/wesnoth.vcproj b/projectfiles/VC9/wesnoth.vcproj
index c0fe6288bee..3fd36b7bcc7 100644
--- a/projectfiles/VC9/wesnoth.vcproj
+++ b/projectfiles/VC9/wesnoth.vcproj
@@ -49,8 +49,9 @@
 				RuntimeLibrary="3"
 				OpenMP="false"
 				UsePrecompiledHeader="0"
-				WarningLevel="3"
+				WarningLevel="4"
 				DebugInformationFormat="4"
+				DisableSpecificWarnings="4127;4512;4706"
 			/>
 			<Tool
 				Name="VCManagedResourceCompilerTool"
diff --git a/projectfiles/VC9/wesnothd.vcproj b/projectfiles/VC9/wesnothd.vcproj
index 55867c49490..788e7f7ecd3 100644
--- a/projectfiles/VC9/wesnothd.vcproj
+++ b/projectfiles/VC9/wesnothd.vcproj
@@ -48,8 +48,9 @@
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="3"
 				UsePrecompiledHeader="0"
-				WarningLevel="3"
+				WarningLevel="4"
 				DebugInformationFormat="4"
+				DisableSpecificWarnings="4127;4512;4706"
 			/>
 			<Tool
 				Name="VCManagedResourceCompilerTool"
diff --git a/projectfiles/VC9/wesnothlib.vcproj b/projectfiles/VC9/wesnothlib.vcproj
index b2434e9fcd3..dd3474646d7 100644
--- a/projectfiles/VC9/wesnothlib.vcproj
+++ b/projectfiles/VC9/wesnothlib.vcproj
@@ -46,8 +46,9 @@
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="3"
-				WarningLevel="3"
+				WarningLevel="4"
 				DebugInformationFormat="4"
+				DisableSpecificWarnings="4127;4512;4706"
 			/>
 			<Tool
 				Name="VCManagedResourceCompilerTool"