diff --git a/addpasswd_2022.vcxproj b/addpasswd_2022.vcxproj
index 772ce774..0369e0de 100755
--- a/addpasswd_2022.vcxproj
+++ b/addpasswd_2022.vcxproj
@@ -5,10 +5,18 @@
       <Configuration>Debug</Configuration>
       <Platform>Win32</Platform>
     </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
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+      <Platform>x64</Platform>
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     <ProjectConfiguration Include="Release|Win32">
       <Configuration>Release</Configuration>
       <Platform>Win32</Platform>
     </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
   </ItemGroup>
   <PropertyGroup Label="Globals">
     <ProjectName>addpasswd</ProjectName>
@@ -22,12 +30,24 @@
     <CharacterSet>MultiByte</CharacterSet>
     <PlatformToolset>v143</PlatformToolset>
   </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+    <CharacterSet>MultiByte</CharacterSet>
+    <PlatformToolset>v143</PlatformToolset>
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   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseOfMfc>false</UseOfMfc>
     <CharacterSet>MultiByte</CharacterSet>
     <PlatformToolset>v143</PlatformToolset>
   </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+    <CharacterSet>MultiByte</CharacterSet>
+    <PlatformToolset>v143</PlatformToolset>
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   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
   </ImportGroup>
@@ -35,29 +55,49 @@
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" />
     <Import Project="$(VCTargetsPath)Microsoft.CPP.UpgradeFromVC60.props" />
   </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" />
+    <Import Project="$(VCTargetsPath)Microsoft.CPP.UpgradeFromVC60.props" />
+  </ImportGroup>
   <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" />
     <Import Project="$(VCTargetsPath)Microsoft.CPP.UpgradeFromVC60.props" />
   </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">
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+    <Import Project="$(VCTargetsPath)Microsoft.CPP.UpgradeFromVC60.props" />
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   <PropertyGroup Label="UserMacros" />
   <PropertyGroup>
     <_ProjectFileVersion>10.0.21006.1</_ProjectFileVersion>
     <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(Configuration)\</OutDir>
     <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(Configuration)\</IntDir>
     <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</LinkIncremental>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</LinkIncremental>
     <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(Configuration)\</OutDir>
     <IntDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(Configuration)\</IntDir>
     <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">false</LinkIncremental>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|x64'">false</LinkIncremental>
     <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">AllRules.ruleset</CodeAnalysisRuleSet>
+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">AllRules.ruleset</CodeAnalysisRuleSet>
     <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" />
+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" />
     <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" />
+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" />
     <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">AllRules.ruleset</CodeAnalysisRuleSet>
+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Release|x64'">AllRules.ruleset</CodeAnalysisRuleSet>
     <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" />
+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />
     <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" />
+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />
     <IncludePath Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(ProjectDir)..\h323plus\include;$(ProjectDir)..\ptlib\include;$(IncludePath)</IncludePath>
+    <IncludePath Condition="'$(Configuration)|$(Platform)'=='Release|x64'">$(ProjectDir)..\h323plus\include;$(ProjectDir)..\ptlib\include;$(IncludePath)</IncludePath>
     <LibraryPath Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(ProjectDir)..\h323plus\lib;$(ProjectDir)..\ptlib\lib;$(LibraryPath)</LibraryPath>
+    <LibraryPath Condition="'$(Configuration)|$(Platform)'=='Release|x64'">$(ProjectDir)..\h323plus\lib;$(ProjectDir)..\ptlib\lib;$(LibraryPath)</LibraryPath>
     <IncludePath Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(ProjectDir)..\h323plus\include;$(ProjectDir)..\ptlib\include;$(IncludePath)</IncludePath>
+    <IncludePath Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">$(ProjectDir)..\h323plus\include;$(ProjectDir)..\ptlib\include;$(IncludePath)</IncludePath>
     <LibraryPath Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(ProjectDir)..\h323plus\lib;$(ProjectDir)..\ptlib\lib;$(LibraryPath)</LibraryPath>
+    <LibraryPath Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">$(ProjectDir)..\h323plus\lib;$(ProjectDir)..\ptlib\lib;$(LibraryPath)</LibraryPath>
   </PropertyGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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@@ -79,7 +119,7 @@
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       <ObjectFileName>$(TargetDir)</ObjectFileName>
       <ProgramDataBaseFileName>$(TargetDir)</ProgramDataBaseFileName>
-      <WarningLevel>Level4</WarningLevel>
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       <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
     </ClCompile>
@@ -104,6 +144,48 @@
       <OutputFile>.\Debug/addpasswd.bsc</OutputFile>
     </Bscmake>
   </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Midl>
+      <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <TypeLibraryName>.\Debug/addpasswd.tlb</TypeLibraryName>
+      <HeaderFileName>
+      </HeaderFileName>
+    </Midl>
+    <ClCompile>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+      <PrecompiledHeaderOutputFile>$(TargetDir)addpasswd.pch</PrecompiledHeaderOutputFile>
+      <AssemblerListingLocation>$(TargetDir)</AssemblerListingLocation>
+      <ObjectFileName>$(TargetDir)</ObjectFileName>
+      <ProgramDataBaseFileName>$(TargetDir)</ProgramDataBaseFileName>
+      <WarningLevel>Level2</WarningLevel>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+    </ClCompile>
+    <ResourceCompile>
+      <PreprocessorDefinitions>_DEBUG;_AFXDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <Culture>0x0409</Culture>
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+    <Link>
+      <AdditionalDependencies>ptlibs_$(PlatformShortName)_d.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <OutputFile>$(TargetDir)addpasswd.exe</OutputFile>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <ProgramDatabaseFile>$(TargetDir)addpasswd_$(PlatformShortName).pdb</ProgramDatabaseFile>
+      <SubSystem>Console</SubSystem>
+      <RandomizedBaseAddress>false</RandomizedBaseAddress>
+      <DataExecutionPrevention>
+      </DataExecutionPrevention>
+    </Link>
+    <Bscmake>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <OutputFile>.\Debug/addpasswd.bsc</OutputFile>
+    </Bscmake>
+  </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <Midl>
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@@ -127,7 +209,7 @@
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       <ObjectFileName>Release/</ObjectFileName>
       <ProgramDataBaseFileName>Release/</ProgramDataBaseFileName>
-      <WarningLevel>Level4</WarningLevel>
+      <WarningLevel>Level2</WarningLevel>
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       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
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@@ -153,10 +235,59 @@
       <OutputFile>.\Release/addpasswd.bsc</OutputFile>
     </Bscmake>
   </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Midl>
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+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <TypeLibraryName>.\Release/addpasswd.tlb</TypeLibraryName>
+      <HeaderFileName>
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+    </Midl>
+    <ClCompile>
+      <Optimization>MaxSpeed</Optimization>
+      <InlineFunctionExpansion>AnySuitable</InlineFunctionExpansion>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
+      <PreprocessorDefinitions>NDEBUG;PTRACING;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <StringPooling>false</StringPooling>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <PrecompiledHeaderOutputFile>Release_$(PlatformShortName)/addpasswd.pch</PrecompiledHeaderOutputFile>
+      <AssemblerListingLocation>Release_$(PlatformShortName)/</AssemblerListingLocation>
+      <ObjectFileName>Release/</ObjectFileName>
+      <ProgramDataBaseFileName>Release_$(PlatformShortName)/</ProgramDataBaseFileName>
+      <WarningLevel>Level2</WarningLevel>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <WholeProgramOptimization>true</WholeProgramOptimization>
+    </ClCompile>
+    <ResourceCompile>
+      <PreprocessorDefinitions>NDEBUG;_AFXDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <Culture>0x0409</Culture>
+    </ResourceCompile>
+    <Link>
+      <AdditionalDependencies>ptlibs_$(PlatformShortName).lib;mpr.lib;winmm.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <OutputFile>Release_$(PlatformShortName)/addpasswd.exe</OutputFile>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <ProgramDatabaseFile>Release_$(PlatformShortName)/addpasswd_$(PlatformShortName).pdb</ProgramDatabaseFile>
+      <SubSystem>Console</SubSystem>
+      <RandomizedBaseAddress>false</RandomizedBaseAddress>
+      <DataExecutionPrevention>
+      </DataExecutionPrevention>
+      <LinkTimeCodeGeneration>UseLinkTimeCodeGeneration</LinkTimeCodeGeneration>
+    </Link>
+    <Bscmake>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <OutputFile>.\Release/addpasswd.bsc</OutputFile>
+    </Bscmake>
+  </ItemDefinitionGroup>
   <ItemGroup>
     <ClCompile Include="addpasswd\addpasswd.cxx">
       <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|x64'">%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
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   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
diff --git a/gk_2022.sln b/gk_2022.sln
index 1c85f816..e1586e6d 100755
--- a/gk_2022.sln
+++ b/gk_2022.sln
@@ -1,35 +1,60 @@
-Microsoft Visual Studio Solution File, Format Version 11.00
-# Visual C++ Express 2017
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.7.34221.43
+MinimumVisualStudioVersion = 10.0.40219.1
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "gnugk", "gk_2022.vcxproj", "{C5052DDD-FADC-4415-B235-92A9761BB21D}"
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "addpasswd", "addpasswd_2022.vcxproj", "{2C306BF0-7FBE-4136-B021-AFA258898341}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
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-		Debug as Service (h323plus)|Win32 = Debug as Service (h323plus)|Win32
-		Release (h323plus)|Win32 = Release (h323plus)|Win32
-		Release as Service (h323plus)|Win32 = Release as Service (h323plus)|Win32
+		Debug as Service|Win32 = Debug as Service|Win32
+		Debug as Service|x64 = Debug as Service|x64
+		Debug|Win32 = Debug|Win32
+		Debug|x64 = Debug|x64
+		Release as Service|Win32 = Release as Service|Win32
+		Release as Service|x64 = Release as Service|x64
+		Release|Win32 = Release|Win32
+		Release|x64 = Release|x64
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{C5052DDD-FADC-4415-B235-92A9761BB21D}.Debug (h323plus)|Win32.ActiveCfg = Debug (h323plus)|Win32
-		{C5052DDD-FADC-4415-B235-92A9761BB21D}.Debug (h323plus)|Win32.Build.0 = Debug (h323plus)|Win32
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-		{C5052DDD-FADC-4415-B235-92A9761BB21D}.Release (h323plus)|Win32.Build.0 = Release (h323plus)|Win32
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-		{2C306BF0-7FBE-4136-B021-AFA258898341}.Debug (h323plus)|Win32.Build.0 = Debug|Win32
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-		{2C306BF0-7FBE-4136-B021-AFA258898341}.Debug as Service (h323plus)|Win32.Build.0 = Debug|Win32
-		{2C306BF0-7FBE-4136-B021-AFA258898341}.Release (h323plus)|Win32.ActiveCfg = Release|Win32
-		{2C306BF0-7FBE-4136-B021-AFA258898341}.Release (h323plus)|Win32.Build.0 = Release|Win32
-		{2C306BF0-7FBE-4136-B021-AFA258898341}.Release as Service (h323plus)|Win32.ActiveCfg = Release|Win32
-		{2C306BF0-7FBE-4136-B021-AFA258898341}.Release as Service (h323plus)|Win32.Build.0 = Release|Win32
+		{C5052DDD-FADC-4415-B235-92A9761BB21D}.Debug as Service|Win32.ActiveCfg = Debug as Service (h323plus)|Win32
+		{C5052DDD-FADC-4415-B235-92A9761BB21D}.Debug as Service|Win32.Build.0 = Debug as Service (h323plus)|Win32
+		{C5052DDD-FADC-4415-B235-92A9761BB21D}.Debug as Service|x64.ActiveCfg = Debug as Service (h323plus)|x64
+		{C5052DDD-FADC-4415-B235-92A9761BB21D}.Debug as Service|x64.Build.0 = Debug as Service (h323plus)|x64
+		{C5052DDD-FADC-4415-B235-92A9761BB21D}.Debug|Win32.ActiveCfg = Debug (h323plus)|Win32
+		{C5052DDD-FADC-4415-B235-92A9761BB21D}.Debug|Win32.Build.0 = Debug (h323plus)|Win32
+		{C5052DDD-FADC-4415-B235-92A9761BB21D}.Debug|x64.ActiveCfg = Debug (h323plus)|x64
+		{C5052DDD-FADC-4415-B235-92A9761BB21D}.Debug|x64.Build.0 = Debug (h323plus)|x64
+		{C5052DDD-FADC-4415-B235-92A9761BB21D}.Release as Service|Win32.ActiveCfg = Release as Service (h323plus)|Win32
+		{C5052DDD-FADC-4415-B235-92A9761BB21D}.Release as Service|Win32.Build.0 = Release as Service (h323plus)|Win32
+		{C5052DDD-FADC-4415-B235-92A9761BB21D}.Release as Service|x64.ActiveCfg = Release as Service (h323plus)|x64
+		{C5052DDD-FADC-4415-B235-92A9761BB21D}.Release as Service|x64.Build.0 = Release as Service (h323plus)|x64
+		{C5052DDD-FADC-4415-B235-92A9761BB21D}.Release|Win32.ActiveCfg = Release (h323plus)|Win32
+		{C5052DDD-FADC-4415-B235-92A9761BB21D}.Release|Win32.Build.0 = Release (h323plus)|Win32
+		{C5052DDD-FADC-4415-B235-92A9761BB21D}.Release|x64.ActiveCfg = Release (h323plus)|x64
+		{C5052DDD-FADC-4415-B235-92A9761BB21D}.Release|x64.Build.0 = Release (h323plus)|x64
+		{2C306BF0-7FBE-4136-B021-AFA258898341}.Debug as Service|Win32.ActiveCfg = Debug|Win32
+		{2C306BF0-7FBE-4136-B021-AFA258898341}.Debug as Service|Win32.Build.0 = Debug|Win32
+		{2C306BF0-7FBE-4136-B021-AFA258898341}.Debug as Service|x64.ActiveCfg = Debug|x64
+		{2C306BF0-7FBE-4136-B021-AFA258898341}.Debug as Service|x64.Build.0 = Debug|x64
+		{2C306BF0-7FBE-4136-B021-AFA258898341}.Debug|Win32.ActiveCfg = Debug|Win32
+		{2C306BF0-7FBE-4136-B021-AFA258898341}.Debug|Win32.Build.0 = Debug|Win32
+		{2C306BF0-7FBE-4136-B021-AFA258898341}.Debug|x64.ActiveCfg = Release|x64
+		{2C306BF0-7FBE-4136-B021-AFA258898341}.Debug|x64.Build.0 = Release|x64
+		{2C306BF0-7FBE-4136-B021-AFA258898341}.Release as Service|Win32.ActiveCfg = Release|Win32
+		{2C306BF0-7FBE-4136-B021-AFA258898341}.Release as Service|Win32.Build.0 = Release|Win32
+		{2C306BF0-7FBE-4136-B021-AFA258898341}.Release as Service|x64.ActiveCfg = Release|x64
+		{2C306BF0-7FBE-4136-B021-AFA258898341}.Release as Service|x64.Build.0 = Release|x64
+		{2C306BF0-7FBE-4136-B021-AFA258898341}.Release|Win32.ActiveCfg = Release|Win32
+		{2C306BF0-7FBE-4136-B021-AFA258898341}.Release|Win32.Build.0 = Release|Win32
+		{2C306BF0-7FBE-4136-B021-AFA258898341}.Release|x64.ActiveCfg = Release|x64
+		{2C306BF0-7FBE-4136-B021-AFA258898341}.Release|x64.Build.0 = Release|x64
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {9D30E884-FDEC-48A9-BA0D-CAE0029A0D76}
+	EndGlobalSection
 EndGlobal
diff --git a/gk_2022.vcxproj b/gk_2022.vcxproj
index b2148e00..8798737d 100755
--- a/gk_2022.vcxproj
+++ b/gk_2022.vcxproj
@@ -5,18 +5,34 @@
       <Configuration>Debug (h323plus)</Configuration>
       <Platform>Win32</Platform>
     </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug (h323plus)|x64">
+      <Configuration>Debug (h323plus)</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
     <ProjectConfiguration Include="Debug as Service (h323plus)|Win32">
       <Configuration>Debug as Service (h323plus)</Configuration>
       <Platform>Win32</Platform>
     </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug as Service (h323plus)|x64">
+      <Configuration>Debug as Service (h323plus)</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
     <ProjectConfiguration Include="Release (h323plus)|Win32">
       <Configuration>Release (h323plus)</Configuration>
       <Platform>Win32</Platform>
     </ProjectConfiguration>
+    <ProjectConfiguration Include="Release (h323plus)|x64">
+      <Configuration>Release (h323plus)</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
     <ProjectConfiguration Include="Release as Service (h323plus)|Win32">
       <Configuration>Release as Service (h323plus)</Configuration>
       <Platform>Win32</Platform>
     </ProjectConfiguration>
+    <ProjectConfiguration Include="Release as Service (h323plus)|x64">
+      <Configuration>Release as Service (h323plus)</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
   </ItemGroup>
   <PropertyGroup Label="Globals">
     <ProjectName>gnugk</ProjectName>
@@ -29,21 +45,41 @@
     <UseOfMfc>false</UseOfMfc>
     <PlatformToolset>v143</PlatformToolset>
   </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug as Service (h323plus)|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+    <PlatformToolset>v143</PlatformToolset>
+  </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release as Service (h323plus)|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseOfMfc>false</UseOfMfc>
     <PlatformToolset>v143</PlatformToolset>
   </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release as Service (h323plus)|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+    <PlatformToolset>v143</PlatformToolset>
+  </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release (h323plus)|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseOfMfc>false</UseOfMfc>
     <PlatformToolset>v143</PlatformToolset>
   </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release (h323plus)|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+    <PlatformToolset>v143</PlatformToolset>
+  </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug (h323plus)|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseOfMfc>false</UseOfMfc>
     <PlatformToolset>v143</PlatformToolset>
   </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug (h323plus)|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+    <PlatformToolset>v143</PlatformToolset>
+  </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
   </ImportGroup>
@@ -51,54 +87,111 @@
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" />
     <Import Project="$(VCTargetsPath)Microsoft.CPP.UpgradeFromVC71.props" />
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+      <ProgramDataBaseFileName>.\Debug/</ProgramDataBaseFileName>
+      <BrowseInformation>true</BrowseInformation>
+      <WarningLevel>Level3</WarningLevel>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <CompileAs>Default</CompileAs>
+      <LanguageStandard>
+      </LanguageStandard>
+    </ClCompile>
+    <ResourceCompile>
+      <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <Culture>0x0409</Culture>
+    </ResourceCompile>
+    <Link>
+      <AdditionalDependencies>h323plus_$(PlatformShortName)_d.lib;ptlibs_$(PlatformShortName)_d.lib;snmpapi.lib;Winmm.lib;mpr.lib;wsock32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <OutputFile>Debug_$(PlatformShortName)\gnugk.exe</OutputFile>
+      <SuppressStartupBanner>true</SuppressStartupBanner>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <ProgramDatabaseFile>.\Debug\gnugk.pdb</ProgramDatabaseFile>
+      <SubSystem>Windows</SubSystem>
+      <RandomizedBaseAddress>true</RandomizedBaseAddress>
+      <DataExecutionPrevention>true</DataExecutionPrevention>
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   <ItemGroup>
     <ClCompile Include="capctrl.cxx" />
     <ClCompile Include="cisco.cxx" />
@@ -426,41 +769,77 @@
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     <CustomBuild Include="gnugkbuildopts.h">
       <Message Condition="'$(Configuration)|$(Platform)'=='Debug (h323plus)|Win32'">Configuring Build Options</Message>
+      <Message Condition="'$(Configuration)|$(Platform)'=='Debug (h323plus)|x64'">Configuring Build Options</Message>
       <Command Condition="'$(Configuration)|$(Platform)'=='Debug (h323plus)|Win32'">cd $(ProjectDir)
 configure
+</Command>
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+configure
 </Command>
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+      <AdditionalInputs Condition="'$(Configuration)|$(Platform)'=='Debug (h323plus)|x64'">$(SolutionDir)/configure.in;%(AdditionalInputs)</AdditionalInputs>
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+      <Message Condition="'$(Configuration)|$(Platform)'=='Debug as Service (h323plus)|x64'">Configuring Build Options</Message>
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 </Command>
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+configure
 </Command>
       <AdditionalInputs Condition="'$(Configuration)|$(Platform)'=='Release as Service (h323plus)|Win32'">$(SolutionDir)/configure.in;%(AdditionalInputs)</AdditionalInputs>
+      <AdditionalInputs Condition="'$(Configuration)|$(Platform)'=='Release as Service (h323plus)|x64'">$(SolutionDir)/configure.in;%(AdditionalInputs)</AdditionalInputs>
       <Outputs Condition="'$(Configuration)|$(Platform)'=='Release as Service (h323plus)|Win32'">%(RootDir)%(Directory)gnugkbuildopts.h;%(Outputs)</Outputs>
+      <Outputs Condition="'$(Configuration)|$(Platform)'=='Release as Service (h323plus)|x64'">%(RootDir)%(Directory)gnugkbuildopts.h;%(Outputs)</Outputs>
       <Message Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">Configuring Build Options</Message>
+      <Message Condition="'$(Configuration)|$(Platform)'=='Release|x64'">Configuring Build Options</Message>
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       <Outputs Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">%(RootDir)%(Directory)gnugkbuildopts.h;%(Outputs)</Outputs>
+      <Outputs Condition="'$(Configuration)|$(Platform)'=='Release|x64'">%(RootDir)%(Directory)gnugkbuildopts.h;%(Outputs)</Outputs>
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     <ClInclude Include="h323util.h" />
     <ClInclude Include="httpacct.h" />