diff -Naur a/contrib/vstudio/vc9/miniunz.vcproj b/contrib/vstudio/vc9/miniunz.vcproj
--- a/contrib/vstudio/vc9/miniunz.vcproj	Mon May 20 15:26:14 2013
+++ b/contrib/vstudio/vc9/miniunz.vcproj	Mon May 20 14:30:04 2013
@@ -51,7 +51,7 @@
 				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="0"
-				RuntimeLibrary="1"
+				RuntimeLibrary="3"
 				BufferSecurityCheck="false"
 				UsePrecompiledHeader="0"
 				AssemblerListingLocation="$(IntDir)\"
@@ -135,7 +135,7 @@
 				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE"
 				StringPooling="true"
 				BasicRuntimeChecks="0"
-				RuntimeLibrary="0"
+				RuntimeLibrary="2"
 				BufferSecurityCheck="false"
 				EnableFunctionLevelLinking="true"
 				UsePrecompiledHeader="0"
diff -Naur a/contrib/vstudio/vc9/minizip.vcproj b/contrib/vstudio/vc9/minizip.vcproj
--- a/contrib/vstudio/vc9/minizip.vcproj	Mon May 20 15:26:14 2013
+++ b/contrib/vstudio/vc9/minizip.vcproj	Mon May 20 14:30:04 2013
@@ -51,7 +51,7 @@
 				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="0"
-				RuntimeLibrary="1"
+				RuntimeLibrary="3"
 				BufferSecurityCheck="false"
 				UsePrecompiledHeader="0"
 				AssemblerListingLocation="$(IntDir)\"
@@ -135,7 +135,7 @@
 				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE"
 				StringPooling="true"
 				BasicRuntimeChecks="0"
-				RuntimeLibrary="0"
+				RuntimeLibrary="2"
 				BufferSecurityCheck="false"
 				EnableFunctionLevelLinking="true"
 				UsePrecompiledHeader="0"
diff -Naur a/contrib/vstudio/vc9/testzlib.vcproj b/contrib/vstudio/vc9/testzlib.vcproj
--- a/contrib/vstudio/vc9/testzlib.vcproj	Mon May 20 15:26:14 2013
+++ b/contrib/vstudio/vc9/testzlib.vcproj	Mon May 20 14:30:04 2013
@@ -51,7 +51,7 @@
 				PreprocessorDefinitions="ASMV;ASMINF;WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="0"
-				RuntimeLibrary="1"
+				RuntimeLibrary="3"
 				BufferSecurityCheck="false"
 				UsePrecompiledHeader="0"
 				AssemblerOutput="4"
@@ -282,7 +282,7 @@
 				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
 				StringPooling="true"
 				BasicRuntimeChecks="0"
-				RuntimeLibrary="0"
+				RuntimeLibrary="2"
 				BufferSecurityCheck="false"
 				EnableFunctionLevelLinking="true"
 				UsePrecompiledHeader="0"
@@ -520,7 +520,7 @@
 				PreprocessorDefinitions="ASMV;ASMINF;WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
 				StringPooling="true"
 				BasicRuntimeChecks="0"
-				RuntimeLibrary="0"
+				RuntimeLibrary="2"
 				BufferSecurityCheck="false"
 				EnableFunctionLevelLinking="true"
 				UsePrecompiledHeader="0"
@@ -602,7 +602,7 @@
 				AdditionalIncludeDirectories="..\..\.."
 				PreprocessorDefinitions="ASMV;ASMINF;WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
 				BasicRuntimeChecks="0"
-				RuntimeLibrary="0"
+				RuntimeLibrary="2"
 				BufferSecurityCheck="false"
 				AssemblerListingLocation="$(IntDir)\"
 			/>
diff -Naur a/contrib/vstudio/vc9/testzlibdll.vcproj b/contrib/vstudio/vc9/testzlibdll.vcproj
--- a/contrib/vstudio/vc9/testzlibdll.vcproj	Mon May 20 15:26:14 2013
+++ b/contrib/vstudio/vc9/testzlibdll.vcproj	Mon May 20 14:30:04 2013
@@ -51,7 +51,7 @@
 				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="0"
-				RuntimeLibrary="1"
+				RuntimeLibrary="3"
 				BufferSecurityCheck="false"
 				UsePrecompiledHeader="0"
 				AssemblerListingLocation="$(IntDir)\"
@@ -135,7 +135,7 @@
 				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE"
 				StringPooling="true"
 				BasicRuntimeChecks="0"
-				RuntimeLibrary="0"
+				RuntimeLibrary="2"
 				BufferSecurityCheck="false"
 				EnableFunctionLevelLinking="true"
 				UsePrecompiledHeader="0"
diff -Naur a/contrib/vstudio/vc9/zlibstat.vcproj b/contrib/vstudio/vc9/zlibstat.vcproj
--- a/contrib/vstudio/vc9/zlibstat.vcproj	Mon May 20 15:26:14 2013
+++ b/contrib/vstudio/vc9/zlibstat.vcproj	Mon May 20 14:30:04 2013
@@ -50,7 +50,7 @@
 				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"
 				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
 				ExceptionHandling="0"
-				RuntimeLibrary="1"
+				RuntimeLibrary="3"
 				BufferSecurityCheck="false"
 				PrecompiledHeaderFile="$(IntDir)/zlibstat.pch"
 				AssemblerListingLocation="$(IntDir)\"
@@ -272,7 +272,7 @@
 				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ASMV;ASMINF"
 				StringPooling="true"
 				ExceptionHandling="0"
-				RuntimeLibrary="0"
+				RuntimeLibrary="2"
 				BufferSecurityCheck="false"
 				EnableFunctionLevelLinking="true"
 				PrecompiledHeaderFile="$(IntDir)/zlibstat.pch"
@@ -495,7 +495,7 @@
 				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
 				StringPooling="true"
 				ExceptionHandling="0"
-				RuntimeLibrary="0"
+				RuntimeLibrary="2"
 				BufferSecurityCheck="false"
 				EnableFunctionLevelLinking="true"
 				PrecompiledHeaderFile="$(IntDir)/zlibstat.pch"
diff -Naur a/contrib/vstudio/vc9/zlibvc.vcproj b/contrib/vstudio/vc9/zlibvc.vcproj
--- a/contrib/vstudio/vc9/zlibvc.vcproj	Mon May 20 15:26:14 2013
+++ b/contrib/vstudio/vc9/zlibvc.vcproj	Mon May 20 14:30:04 2013
@@ -56,7 +56,7 @@
 				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"
 				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF"
 				ExceptionHandling="0"
-				RuntimeLibrary="1"
+				RuntimeLibrary="3"
 				BufferSecurityCheck="false"
 				PrecompiledHeaderFile="$(IntDir)/zlibvc.pch"
 				AssemblerListingLocation="$(IntDir)\"
@@ -640,7 +640,7 @@
 				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF"
 				StringPooling="true"
 				ExceptionHandling="0"
-				RuntimeLibrary="0"
+				RuntimeLibrary="2"
 				BufferSecurityCheck="false"
 				EnableFunctionLevelLinking="true"
 				PrecompiledHeaderFile="$(IntDir)/zlibvc.pch"