diff --git a/libzip.vcxproj b/libzip.vcxproj
index 81608fe..aeed7f7 100644
--- a/libzip.vcxproj
+++ b/libzip.vcxproj
@@ -29,13 +29,13 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v143</PlatformToolset>
+    <PlatformToolset>v145</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v143</PlatformToolset>
+    <PlatformToolset>v145</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
@@ -105,6 +105,7 @@
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE; _CRT_SECURE_NO_WARNINGS ; _CRT_NONSTDC_NO_DEPRECATE ; %(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>true</ConformanceMode>
       <AdditionalIncludeDirectories>/EgtDev/Extern/zlib/Include</AdditionalIncludeDirectories>
+      <LanguageStandard>stdcpp20</LanguageStandard>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -134,6 +135,7 @@ copy $(TargetPath) \EgtProg\DllD32</Command>
       <InlineFunctionExpansion>AnySuitable</InlineFunctionExpansion>
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <OmitFramePointers>true</OmitFramePointers>
+      <LanguageStandard>stdcpp20</LanguageStandard>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -158,7 +160,7 @@ copy $(TargetPath) \EgtProg\Dll32</Command>
       <PreprocessorDefinitions>_DEBUG;_CONSOLE; _CRT_SECURE_NO_WARNINGS; _CRT_NONSTDC_NO_DEPRECATE ; %(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>true</ConformanceMode>
       <AdditionalIncludeDirectories>/EgtDev/Extern/zlib/Include</AdditionalIncludeDirectories>
-      <LanguageStandard>stdcpp17</LanguageStandard>
+      <LanguageStandard>stdcpp20</LanguageStandard>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -184,7 +186,7 @@ copy $(TargetPath) \EgtProg\DllD64</Command>
       <PreprocessorDefinitions>NDEBUG;_CONSOLE; _CRT_SECURE_NO_WARNINGS; _CRT_NONSTDC_NO_DEPRECATE ; %(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>true</ConformanceMode>
       <AdditionalIncludeDirectories>/EgtDev/Extern/zlib/Include</AdditionalIncludeDirectories>
-      <LanguageStandard>stdcpp17</LanguageStandard>
+      <LanguageStandard>stdcpp20</LanguageStandard>
       <InlineFunctionExpansion>AnySuitable</InlineFunctionExpansion>
       <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
       <OmitFramePointers>true</OmitFramePointers>
diff --git a/libzip.vcxproj.filters b/libzip.vcxproj.filters
index a524c5d..7c41d70 100644
--- a/libzip.vcxproj.filters
+++ b/libzip.vcxproj.filters
@@ -422,6 +422,12 @@
     <ClCompile Include="zip_source_pass_to_lower_layer.c">
       <Filter>File di origine</Filter>
     </ClCompile>
+    <ClCompile Include="zip_realloc.c">
+      <Filter>File di origine</Filter>
+    </ClCompile>
+    <ClCompile Include="zip_source_get_dostime.c">
+      <Filter>File di origine</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="libzip.rc">