diff --git a/windows/ZeroTierOne/ZeroTierOne.vcxproj b/windows/ZeroTierOne/ZeroTierOne.vcxproj
index 45df9fc23..af77d8c71 100644
--- a/windows/ZeroTierOne/ZeroTierOne.vcxproj
+++ b/windows/ZeroTierOne/ZeroTierOne.vcxproj
@@ -411,7 +411,7 @@
       <Optimization>Disabled</Optimization>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>$(SolutionDir)\..\zeroidc\target;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ZT_EXPORT;FD_SETSIZE=1024;NOMINMAX;STATICLIB;WIN32;ZT_TRACE;ZT_USE_MINIUPNPC;MINIUPNP_STATICLIB;ZT_SOFTWARE_UPDATE_DEFAULT="disable";%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>ZT_SSO_ENABLED=1;ZT_EXPORT;FD_SETSIZE=1024;NOMINMAX;STATICLIB;WIN32;ZT_TRACE;ZT_USE_MINIUPNPC;MINIUPNP_STATICLIB;ZT_SOFTWARE_UPDATE_DEFAULT="disable";%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <DisableSpecificWarnings>4996</DisableSpecificWarnings>
       <RuntimeTypeInfo>false</RuntimeTypeInfo>
       <LanguageStandard>stdcpp14</LanguageStandard>
@@ -433,7 +433,7 @@
       <Optimization>Disabled</Optimization>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>$(SolutionDir)\..\zeroidc\target;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ZT_EXPORT;FD_SETSIZE=1024;NOMINMAX;STATICLIB;WIN32;ZT_TRACE;ZT_USE_MINIUPNPC;MINIUPNP_STATICLIB;ZT_SOFTWARE_UPDATE_DEFAULT="disable";%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>ZT_SSO_ENABLED=1;ZT_EXPORT;FD_SETSIZE=1024;NOMINMAX;STATICLIB;WIN32;ZT_TRACE;ZT_USE_MINIUPNPC;MINIUPNP_STATICLIB;ZT_SOFTWARE_UPDATE_DEFAULT="disable";%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <DisableSpecificWarnings>4996</DisableSpecificWarnings>
       <RuntimeTypeInfo>false</RuntimeTypeInfo>
       <LanguageStandard>stdcpp14</LanguageStandard>
@@ -454,7 +454,7 @@
       <Optimization>Disabled</Optimization>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>$(SolutionDir)\..\zeroidc\target;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ZT_EXPORT;FD_SETSIZE=1024;NOMINMAX;STATICLIB;WIN32;ZT_TRACE;ZT_RULES_ENGINE_DEBUGGING;ZT_USE_MINIUPNPC;MINIUPNP_STATICLIB;ZT_SOFTWARE_UPDATE_DEFAULT="disable";%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>ZT_SSO_ENABLED=1;ZT_EXPORT;FD_SETSIZE=1024;NOMINMAX;STATICLIB;WIN32;ZT_TRACE;ZT_RULES_ENGINE_DEBUGGING;ZT_USE_MINIUPNPC;MINIUPNP_STATICLIB;ZT_SOFTWARE_UPDATE_DEFAULT="disable";%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <DisableSpecificWarnings>4996</DisableSpecificWarnings>
       <RuntimeTypeInfo>false</RuntimeTypeInfo>
@@ -500,7 +500,7 @@
       <Optimization>Disabled</Optimization>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>$(SolutionDir)\..\zeroidc\target;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ZT_EXPORT;FD_SETSIZE=1024;NOMINMAX;STATICLIB;WIN32;ZT_USE_MINIUPNPC;MINIUPNP_STATICLIB;ZT_SOFTWARE_UPDATE_DEFAULT="disable";%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>ZT_SSO_ENABLED=1;ZT_EXPORT;FD_SETSIZE=1024;NOMINMAX;STATICLIB;WIN32;ZT_USE_MINIUPNPC;MINIUPNP_STATICLIB;ZT_SOFTWARE_UPDATE_DEFAULT="disable";%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <DisableSpecificWarnings>4996</DisableSpecificWarnings>
       <RuntimeTypeInfo>false</RuntimeTypeInfo>
@@ -546,7 +546,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>$(SolutionDir)\..\zeroidc\target;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ZT_EXPORT;FD_SETSIZE=1024;STATICLIB;ZT_SALSA20_SSE;ZT_USE_MINIUPNPC;MINIUPNP_STATICLIB;WIN32;NOMINMAX;ZT_SOFTWARE_UPDATE_DEFAULT="apply";ZT_BUILD_PLATFORM=2;ZT_BUILD_ARCHITECTURE=1;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>ZT_SSO_ENABLED=1;ZT_EXPORT;FD_SETSIZE=1024;STATICLIB;ZT_SALSA20_SSE;ZT_USE_MINIUPNPC;MINIUPNP_STATICLIB;WIN32;NOMINMAX;ZT_SOFTWARE_UPDATE_DEFAULT="apply";ZT_BUILD_PLATFORM=2;ZT_BUILD_ARCHITECTURE=1;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
       <StringPooling>true</StringPooling>
       <InlineFunctionExpansion>AnySuitable</InlineFunctionExpansion>
@@ -582,7 +582,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>$(SolutionDir)\..\zeroidc\target;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ZT_EXPORT;FD_SETSIZE=1024;STATICLIB;ZT_SOFTWARE_UPDATE_DEFAULT="apply";ZT_SALSA20_SSE;ZT_USE_MINIUPNPC;MINIUPNP_STATICLIB;WIN32;NOMINMAX;ZT_BUILD_PLATFORM=2;ZT_BUILD_ARCHITECTURE=2;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>ZT_SSO_ENABLED=1;ZT_EXPORT;FD_SETSIZE=1024;STATICLIB;ZT_SOFTWARE_UPDATE_DEFAULT="apply";ZT_SALSA20_SSE;ZT_USE_MINIUPNPC;MINIUPNP_STATICLIB;WIN32;NOMINMAX;ZT_BUILD_PLATFORM=2;ZT_BUILD_ARCHITECTURE=2;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
       <EnableEnhancedInstructionSet>NotSet</EnableEnhancedInstructionSet>
       <StringPooling>true</StringPooling>