diff --git a/Externals/zlib.vcxproj b/Externals/zlib.vcxproj
index 34a57a1f476..98d1cbe909e 100644
--- a/Externals/zlib.vcxproj
+++ b/Externals/zlib.vcxproj
@@ -73,13 +73,7 @@
       <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
-      <BufferSecurityCheck>false</BufferSecurityCheck>
-      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
-      <ObjectFileName>$(IntDir)</ObjectFileName>
-      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
       <WarningLevel>Level3</WarningLevel>
-      <SuppressStartupBanner>true</SuppressStartupBanner>
-      <DebugInformationFormat>OldStyle</DebugInformationFormat>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
     </ClCompile>
     <ResourceCompile>
@@ -91,19 +85,13 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
-      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
       <AdditionalIncludeDirectories>zlib;zlib\contrib\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
       </ExceptionHandling>
-      <BufferSecurityCheck>false</BufferSecurityCheck>
-      <FunctionLevelLinking>true</FunctionLevelLinking>
-      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
-      <ObjectFileName>$(IntDir)</ObjectFileName>
-      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
       <WarningLevel>Level3</WarningLevel>
-      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
     </ClCompile>
     <ResourceCompile>
       <Culture>0x040c</Culture>
@@ -122,13 +110,7 @@
       <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
-      <BufferSecurityCheck>false</BufferSecurityCheck>
-      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
-      <ObjectFileName>$(IntDir)</ObjectFileName>
-      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
       <WarningLevel>Level3</WarningLevel>
-      <SuppressStartupBanner>true</SuppressStartupBanner>
-      <DebugInformationFormat>OldStyle</DebugInformationFormat>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
     </ClCompile>
     <ResourceCompile>
@@ -141,19 +123,13 @@
       <TargetEnvironment>X64</TargetEnvironment>
     </Midl>
     <ClCompile>
-      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
       <AdditionalIncludeDirectories>zlib;zlib\contrib\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
       </ExceptionHandling>
-      <BufferSecurityCheck>false</BufferSecurityCheck>
-      <FunctionLevelLinking>true</FunctionLevelLinking>
-      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
-      <ObjectFileName>$(IntDir)</ObjectFileName>
-      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
       <WarningLevel>Level3</WarningLevel>
-      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <BufferSecurityCheck>false</BufferSecurityCheck>
     </ClCompile>
     <ResourceCompile>
       <Culture>0x040c</Culture>