diff --git a/zlib.vcxproj b/zlib.vcxproj
index f8449df..d09b98c 100644
--- a/zlib.vcxproj
+++ b/zlib.vcxproj
@@ -40,7 +40,7 @@
     <ConfigurationType>DynamicLibrary</ConfigurationType>
     <UseOfMfc>false</UseOfMfc>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v141</PlatformToolset>
+    <PlatformToolset>ClangCL</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
@@ -52,7 +52,7 @@
     <ConfigurationType>DynamicLibrary</ConfigurationType>
     <UseOfMfc>false</UseOfMfc>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v141</PlatformToolset>
+    <PlatformToolset>ClangCL</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
@@ -85,9 +85,9 @@
     <TargetName Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(ProjectName)R$(PlatformArchitecture)</TargetName>
     <TargetName Condition="'$(Configuration)|$(Platform)'=='Release|x64'">$(ProjectName)R$(PlatformArchitecture)</TargetName>
     <IncludePath Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">C:\EgtDev\Extern\zlib\Include;$(IncludePath)</IncludePath>
-    <IncludePath Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">C:\EgtDev\Extern\zlib\Include;$(IncludePath)</IncludePath>
+    <IncludePath Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">C:\;C:\EgtDev\Extern\zlib\Include;$(IncludePath)</IncludePath>
     <IncludePath Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">C:\EgtDev\Extern\zlib\Include;$(IncludePath)</IncludePath>
-    <IncludePath Condition="'$(Configuration)|$(Platform)'=='Release|x64'">C:\EgtDev\Extern\zlib\Include;$(IncludePath)</IncludePath>
+    <IncludePath Condition="'$(Configuration)|$(Platform)'=='Release|x64'">C:\;C:\EgtDev\Extern\zlib\Include;$(IncludePath)</IncludePath>
   </PropertyGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
@@ -137,6 +137,7 @@ copy $(TargetPath) \EgtProg\DllD32</Command>
       <WarningLevel>Level3</WarningLevel>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <LanguageStandard>stdcpp17</LanguageStandard>
     </ClCompile>
     <Lib>
       <OutputFile>$(OutDir)$(TargetName)$(TargetExt)</OutputFile>
@@ -193,7 +194,7 @@ copy $(TargetPath) \EgtProg\Dll32</Command>
     <Link>
       <GenerateDebugInformation>false</GenerateDebugInformation>
       <ModuleDefinitionFile>zlib.def</ModuleDefinitionFile>
-      <LinkTimeCodeGeneration>UseLinkTimeCodeGeneration</LinkTimeCodeGeneration>
+      <LinkTimeCodeGeneration>Default</LinkTimeCodeGeneration>
       <SubSystem>Windows</SubSystem>
     </Link>
   </ItemDefinitionGroup>
@@ -217,6 +218,7 @@ copy $(TargetPath) \EgtProg\Dll32</Command>
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <OmitFramePointers>false</OmitFramePointers>
       <EnableEnhancedInstructionSet>NotSet</EnableEnhancedInstructionSet>
+      <LanguageStandard>stdcpp17</LanguageStandard>
     </ClCompile>
     <Lib>
       <OutputFile>$(OutDir)$(TargetName)$(TargetExt)</OutputFile>