Enable warnings as errors on Windows
diff --git a/vsprojects/vcxproj/test/compression_test/compression_test.vcxproj b/vsprojects/vcxproj/test/compression_test/compression_test.vcxproj
index 9072ffd..7434d89 100644
--- a/vsprojects/vcxproj/test/compression_test/compression_test.vcxproj
+++ b/vsprojects/vcxproj/test/compression_test/compression_test.vcxproj
@@ -74,6 +74,7 @@
       <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;_USE_32BIT_TIME_T;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -88,6 +89,7 @@
       <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -104,6 +106,7 @@
       <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;_USE_32BIT_TIME_T;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -122,6 +125,7 @@
       <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+      <TreatWarningAsError>true</TreatWarningAsError>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>