diff --git a/src/powershell-native/CMakeLists.txt b/src/powershell-native/CMakeLists.txt
index 4dfbd997cf..7a7d72a536 100644
--- a/src/powershell-native/CMakeLists.txt
+++ b/src/powershell-native/CMakeLists.txt
@@ -16,13 +16,13 @@ else ()
 endif ()
 
 #
-# Get the path to the Windows SDK build tools.
+# Normalize the platform name
+#
+# TODO: Only x64 and x86 are supported right now. This needs to be expanded to arm as well
 #
 if (WindowsSDKPlatform STREQUAL "x64" OR WindowsSDKPlatform STREQUAL "X64" OR WindowsSDKPlatform STREQUAL "amd64" OR WindowsSDKPlatform STREQUAL "AMD64")
-    # Normalize the platform name
     SET(WindowsSDKPlatform "x64")
 elseif (WindowsSDKPlatform STREQUAL "x86" OR WindowsSDKPlatform STREQUAL "X86")
-    # Normalize the platform name
     SET(WindowsSDKPlatform "x86")
 else()
     message(FATAL_ERROR "Unsupported WindowsSDKPlatform ${WindowsSDKPlatform}")
@@ -32,14 +32,15 @@ endif ()
 # set the output path for all binaries
 #
 if (BUILD_ONECORE)
-    set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${PROJECT_SOURCE_DIR}/Bin/CoreClr")
+    set(PWRSH_NATIVE_OUTPUT_DIRECTORY "CoreClr")
 else ()
-    set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${PROJECT_SOURCE_DIR}/Bin/FullClr")
+    set(PWRSH_NATIVE_OUTPUT_DIRECTORY "FullClr")
 endif (BUILD_ONECORE)
+
 foreach(OUTPUTCONFIG ${CMAKE_CONFIGURATION_TYPES})
     string(TOUPPER ${OUTPUTCONFIG} OUTPUTCONFIG)
-    set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_${OUTPUTCONFIG} ${CMAKE_RUNTIME_OUTPUT_DIRECTORY})
-    message("  Setting output directory for ${OUTPUTCONFIG} to ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}")
+    set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_${OUTPUTCONFIG} "${PROJECT_SOURCE_DIR}/Bin/${OUTPUTCONFIG}/${PWRSH_NATIVE_OUTPUT_DIRECTORY}")
+    message("  Setting output directory for ${CMAKE_RUNTIME_OUTPUT_DIRECTORY_${OUTPUTCONFIG}}")
 endforeach( OUTPUTCONFIG CMAKE_CONFIGURATION_TYPES )
 
 #
@@ -59,26 +60,6 @@ SET (WIN_VERSION_LONGHORN      0x0600)
 SET (WIN_VERSION_WS03          0x0502)
 SET (WIN_VERSION_WINXP         0x0501)
 
-# ***
-# *** Original flags: BEGIN
-# ***
-#
-# TODO: Will this interfere with OneCore compilations?
-#
-# set these flags, so build does static linking for msvcr120.dll
-# otherwise this dll need to be present on the system
-#set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /MT")
-#set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /MTd")
-
-# Compiler flags that are universal to all powershell native binaries
-#SET(common_pwrsh_definitions 
-#    UNICODE
-#    _UNICODE)
-
-# ***
-# *** Original flags: END
-# ***
-
 #include(dsc_defs.cmake)
 if (BUILD_ONECORE)
     include(nano_defs.cmake)
@@ -87,7 +68,7 @@ else ()
 endif (BUILD_ONECORE)
 
 # Default of BUILD_ONECORE should be ON once it is supported 
-option(BUILD_ONECORE "Compile the OneCore version of the binaries" OFF)
+option(BUILD_ONECORE "Compile the OneCore version of the binaries" ON)
 option(BUILD_DOWNLEVEL "Compile the downlevel version of the binaries" OFF)
 
 # Build the common library that powershell.exe and pwrshplugin.dll depend on
@@ -97,7 +78,4 @@ add_subdirectory(nativemsh/pwrshcommon)
 add_subdirectory(nativemsh/pwrshplugin)
 
 # Build powershell.exe
-#if (NOT BUILD_ONECORE)
-    # Conditionally build powershell.exe until CssMainEntry.cpp appears.
-    add_subdirectory(nativemsh/pwrshexe)
-#endif ()
+add_subdirectory(nativemsh/pwrshexe)
diff --git a/src/powershell-native/nano_defs.cmake b/src/powershell-native/nano_defs.cmake
index f64016f756..983e0886e5 100644
--- a/src/powershell-native/nano_defs.cmake
+++ b/src/powershell-native/nano_defs.cmake
@@ -26,11 +26,11 @@ SET (LibraryPath)
 list (APPEND LibraryPath "${OneCoreLibBase}")
 list (APPEND LibraryPath "${WindowsSDKLibBase}ucrt/${WindowsSDKPlatform}")
 list (APPEND LibraryPath "${WindowsSDKLibBase}um/${WindowsSDKPlatform}" )
-#list (APPEND LibraryPath "${NETFXSdkDir}lib/um/${WindowsSDKPlatform}")
+###list (APPEND LibraryPath "${NETFXSdkDir}lib/um/${WindowsSDKPlatform}")
 link_directories(${LibraryPath})
 
 #
-# Tell CMake to set the platform toolset. 
+# Tell CMake to set the platform toolset. Nano Server requires the Win10 SDK and updated onecore.lib
 #
 set(CMAKE_VS_PLATFORM_TOOLSET "v140") # Use VS 2015 with Win 10 SDK
 set(CMAKE_VS_WINDOWS_TARGET_PLATFORM_VERSION "10.0.10586.0") # Targets Windows 10. Alt is ${WindowsSDKVersion}
@@ -60,22 +60,28 @@ add_compile_options(/Zc:wchar_t) # C++ language conformance: wchar_t is NOT the
 #add_compile_options(/U_WINDOWS)
 
 add_definitions(
-    -DWIN32
-    -DNDEBUG
-    #    -D_DEBUG
+    -D_WIN64
+    -D_AMD64_
+    -DAMD64
+    -D_APISET_WINDOWS_VERSION=0x601
+    -D_APISET_MINWIN_VERSION=0x0101
+    -D_APISET_MINCORE_VERSION=0x0100
+    -DNTDDI_VERSION=0x0A000002
+    #    -DWIN32=100
+    -D_DEBUG
     -D_UNICODE
     -DUNICODE
     -DWIN32_LEAN_AND_MEAN=1
+    #-DNDEBUG
     )
 
+set(CMAKE_ENABLE_EXPORTS ON)
 
-#set(MY_COMMON_LINK_FLAGS "/INCREMENTAL /NOLOGO /MANIFEST:NO /NXCOMPAT /DYNAMICBASE /TLBID:1 /MACHINE:x64 /NODEFAULTLIB")
-set(MY_COMMON_LINK_FLAGS "/INCREMENTAL:NO /NOLOGO /MANIFEST:NO /NXCOMPAT /DYNAMICBASE /TLBID:1 /MACHINE:x64 /guard:cf /OPT:REF /OPT:ICF")
+set(MY_COMMON_LINK_FLAGS "/INCREMENTAL:NO /NOLOGO /MANIFEST:NO /NXCOMPAT /DYNAMICBASE /TLBID:1 /MACHINE:x64 /guard:cf /OPT:REF /OPT:ICF /NODEFAULTLIB")
 set(MY_COMMON_LINK_FLAGS "${MY_COMMON_LINK_FLAGS} /NODEFAULTLIB:kernel32.lib /NODEFAULTLIB:advapi32.lib") # Explicitly exclude kernel32 and advapi32 since CMake is including them and they block execution on Nano Server
 
 set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${MY_COMMON_LINK_FLAGS}")
-#set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /SUBSYSTEM:WINDOWS /OPT:REF") #windows subsystem
-set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS}") #windows subsystem
+set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /SUBSYSTEM:WINDOWS,6.00") #windows subsystem
 
 set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${MY_COMMON_LINK_FLAGS}")
 set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /SUBSYSTEM:CONSOLE") #windows subsystem
diff --git a/src/powershell-native/nativemsh/pwrshcommon/CMakeLists.txt b/src/powershell-native/nativemsh/pwrshcommon/CMakeLists.txt
index 09f80d8ec5..c3971e88d8 100644
--- a/src/powershell-native/nativemsh/pwrshcommon/CMakeLists.txt
+++ b/src/powershell-native/nativemsh/pwrshcommon/CMakeLists.txt
@@ -14,9 +14,7 @@ if (BUILD_ONECORE)
     set(PWRSHCOMMON_WINDOWS_LIBS 
         #        onecore.lib
         )
-    #set(pwrshcommon_definitions ${common_pwrsh_definitions} CORECLR)
-    set(pwrshcommon_definitions CORECLR)
-    set_target_properties(pwrshcommon PROPERTIES COMPILE_DEFINITIONS "${pwrshcommon_definitions}")
+    set_target_properties(pwrshcommon PROPERTIES COMPILE_DEFINITIONS "CORECLR")
 else () # NOT BUILD_ONECORE
     message("Building Full version of pwrshcommon.lib")
     # Libraries to use when creating this binary for Windows on full SKUs
@@ -35,13 +33,8 @@ else () # NOT BUILD_ONECORE
         #        msxml6.lib
         #        mscoree.lib)
         )
-    #set(pwrshcommon_definitions ${common_pwrsh_definitions})
-    #    target_include_directories(pwrshcommon PUBLIC
-    #        "%ProgramFiles(x86)%/Windows Kits/NETFXSDK/4.6/Include/um")
 endif (BUILD_ONECORE)
 
-#set_target_properties(pwrshcommon PROPERTIES COMPILE_DEFINITIONS "${pwrshcommon_definitions}")
-
 target_link_libraries(pwrshcommon
     ${PWRSHCOMMON_WINDOWS_LIBS})
 
diff --git a/src/powershell-native/nativemsh/pwrshcommon/ClrHostWrapper.h b/src/powershell-native/nativemsh/pwrshcommon/ClrHostWrapper.h
index 54df1e2b59..2c86fb9e27 100644
--- a/src/powershell-native/nativemsh/pwrshcommon/ClrHostWrapper.h
+++ b/src/powershell-native/nativemsh/pwrshcommon/ClrHostWrapper.h
@@ -77,7 +77,7 @@ namespace NativeMsh
         //
         // Function Pointer Definitions for the function pointers to load from CoreCLR.dll
         //
-        typedef int (*coreclr_initialize_ptr)(
+        typedef int (STDMETHODCALLTYPE *coreclr_initialize_ptr)(
             const char* exePath,
             const char* appDomainFriendlyName,
             int propertyCount,
@@ -86,11 +86,11 @@ namespace NativeMsh
             void** hostHandle,
             unsigned int* domainId);
 
-        typedef int (*coreclr_shutdown_ptr)(
+        typedef int (STDMETHODCALLTYPE *coreclr_shutdown_ptr)(
             void* hostHandle,
             unsigned int domainId);
 
-        typedef int (*coreclr_create_delegate_ptr)(
+        typedef int (STDMETHODCALLTYPE *coreclr_create_delegate_ptr)(
             void* hostHandle,
             unsigned int domainId,
             const char* entryPointAssemblyName,
diff --git a/src/powershell-native/nativemsh/pwrshexe/CMakeLists.txt b/src/powershell-native/nativemsh/pwrshexe/CMakeLists.txt
index 9306c687bc..cddff23d3b 100644
--- a/src/powershell-native/nativemsh/pwrshexe/CMakeLists.txt
+++ b/src/powershell-native/nativemsh/pwrshexe/CMakeLists.txt
@@ -2,18 +2,11 @@
 # Builds PowerShell.exe, the native host for PowerShell.
 #
 
-# Only build powershell.exe for "full" windows. Open PowerShell uses the managed executable.
 if (BUILD_ONECORE)
-    #set(BUILD_ONECORE OFF)
-endif ()
-
-if (BUILD_ONECORE)
-    message("*")
-    message("*********** Building PowerShell.exe for CoreCLR. Add CssMainEntry.cpp")
-    message("*")
     # Settings to use when creating PowerShell.exe for Windows on OneCore-based SKUs
     set(PWRSHEXE_WINDOWS_SOURCES 
-        CssMainEntry.cpp)
+        CssMainEntry.cpp
+        )
     set(PWRSHEXE_WINDOWS_LIBS
 ###        ${STATIC_MT_CRT_LIB}
 ###        ${STATIC_MT_VCRT_LIB}
@@ -22,26 +15,26 @@ if (BUILD_ONECORE)
         vcruntime.lib
         ucrtd.lib
         msvcrt.lib
+        msvcrt.lib
+        msvcprtd.lib
+        user32.lib
+        atls.lib
         )
      set(powershell_definitions 
          _CONSOLE
          CORECLR
          )
-    #        ${common_pwrsh_definitions})
 else ()
-    message("*")
-    message("*********** Building PowerShell.exe for 'Full' CLR.")
-    message("*")
     # Settings to use when creating PowerShell.exe for Windows on full SKUs or downlevel platforms
     set(PWRSHEXE_WINDOWS_SOURCES 
-        MainEntry.cpp)
+        MainEntry.cpp
+        )
     # Most libs are automatically added by VS
     set(PWRSHEXE_WINDOWS_LIBS
         # CoreCLR libs
         ${STATIC_MT_CRT_LIB}
         ${STATIC_MT_VCRT_LIB}
         ${STATIC_UCRT_LIB}
-        #
 #        ole32.lib
 #        oleaut32.lib
 #        uuid.lib
@@ -53,7 +46,6 @@ else ()
         )
     set(powershell_definitions 
         _CONSOLE
-     #         ${common_pwrsh_definitions})
         )
 endif (BUILD_ONECORE)
 
@@ -61,16 +53,6 @@ add_executable(powershell
     ${PWRSHEXE_WINDOWS_SOURCES})
 
 set_target_properties(powershell PROPERTIES COMPILE_DEFINITIONS "${powershell_definitions}")
-# Set in nano_defs.cmake. Uncomment for other flavors
-#set_target_properties(powershell PROPERTIES LINK_FLAGS_DEBUG "/SUBSYSTEM:CONSOLE")
-#set_target_properties(powershell PROPERTIES LINK_FLAGS_RELWITHDEBINFO "/SUBSYSTEM:CONSOLE")
-#set_target_properties(powershell PROPERTIES LINK_FLAGS_RELEASE "/SUBSYSTEM:CONSOLE")
-#set_target_properties(powershell PROPERTIES LINK_FLAGS_MINSIZEREL "/SUBSYSTEM:CONSOLE")
 
-message("==== Setting libs = ${PWRSHEXE_WINDOWS_LIBS}")
-
-target_link_libraries(powershell
-    ${PWRSHEXE_WINDOWS_LIBS})
-
-#target_link_libraries(powershell LINK_PUBLIC pwrshcommon)
+target_link_libraries(powershell ${PWRSHEXE_WINDOWS_LIBS})
 target_link_libraries(powershell pwrshcommon)
diff --git a/src/powershell-native/nativemsh/pwrshplugin/CMakeLists.txt b/src/powershell-native/nativemsh/pwrshplugin/CMakeLists.txt
index bec4d1e686..fb5f05f827 100644
--- a/src/powershell-native/nativemsh/pwrshplugin/CMakeLists.txt
+++ b/src/powershell-native/nativemsh/pwrshplugin/CMakeLists.txt
@@ -6,12 +6,10 @@ add_library(pwrshplugin SHARED
     pwrshclrhost.cpp
     pwrshpluginerrorcodes.mc
     pwrshpluginerrorcodes.rc
-    pwrshplugin.def)
+    pwrshplugin.def
+    )
 
 if (BUILD_ONECORE)
-    message("*")
-    message("* Setting up BUILD_ONECORE version of pwrshplugin.dll")
-    message("*")
     # Libraries to use when creating this binary for Windows on OneCore-based SKUs
     set(PWRSHPLUGIN_WINDOWS_LIBS 
 ###        ${STATIC_MT_CRT_LIB}
@@ -21,24 +19,23 @@ if (BUILD_ONECORE)
         vcruntime.lib
         ucrtd.lib
         msvcrt.lib
-        wsmsvc.lib)
-    #set(pwrshplugin_definitions ${common_pwrsh_definitions} CORECLR)
-    set(pwrshplugin_definitions CORECLR)
-    set_target_properties(pwrshplugin PROPERTIES COMPILE_DEFINITIONS "${pwrshplugin_definitions}")
+        msvcprtd.lib
+        user32.lib
+        atls.lib
+        wsmsvc.lib
+        )
+    set_target_properties(pwrshplugin PROPERTIES COMPILE_DEFINITIONS "CORECLR")
 else ()
-    message("*")
-    message("* Setting up NOT BUILD_ONECORE version of pwrshplugin.dll")
-    message("*")
     # Libraries to use when creating this binary for Windows on full SKUs
     set(PWRSHPLUGIN_WINDOWS_LIBS
 #        ntdll.lib
 #        kernel32.lib
 #        advapi32.lib
 #        ole32.lib
-        MUILoad.lib
-        mscoree.lib
 #        oleaut32.lib
 #        uuid.lib
+        MUILoad.lib
+        mscoree.lib
         wsmsvc.lib
         # CoreCLR lib
         ${STATIC_MT_CRT_LIB}
@@ -49,11 +46,7 @@ else ()
     set(pwrshplugin_definitions ${common_pwrsh_definitions})
 endif (BUILD_ONECORE)
 
-#set_target_properties(pwrshplugin PROPERTIES COMPILE_DEFINITIONS "${pwrshplugin_definitions}")
-#set_target_properties(pwrshplugin PROPERTIES COMPILE_DEFINITIONS "_DLL")
-
 target_link_libraries(pwrshplugin
     ${PWRSHPLUGIN_WINDOWS_LIBS})
 
-#target_link_libraries(pwrshplugin LINK_PUBLIC pwrshcommon)
 target_link_libraries(pwrshplugin pwrshcommon)
diff --git a/src/powershell-native/nativemsh/pwrshplugin/entrypoints.cpp b/src/powershell-native/nativemsh/pwrshplugin/entrypoints.cpp
index a521e0b890..e1ecbc9dec 100644
--- a/src/powershell-native/nativemsh/pwrshplugin/entrypoints.cpp
+++ b/src/powershell-native/nativemsh/pwrshplugin/entrypoints.cpp
@@ -186,6 +186,7 @@ static PwrshCommon sPwrshCommon;
 // pwszRuntimeVersion and pRuntimeVersionLength represents the size of pwszRuntimeVersion.
 // returns: 0 on success, non-zero on failure.
 _Success_(return == 0) //EXIT_CODE_SUCCESS
+__declspec(dllexport)
 unsigned int GetCLRVersionForPSVersion(int iPSMajorVersion, 
                                int iPSMinorVersion,
                                size_t runtimeVersionLength,
@@ -323,6 +324,8 @@ DWORD ReportOperationComplete(WSMAN_PLUGIN_REQUEST *requestDetails, DWORD errorC
 // initialized more than once within the same process, but only once per 
 // applicationIdentification.
 // -----------------------------------------------------------------------------
+__declspec(dllexport)
+extern "C"
 DWORD WINAPI WSManPluginStartup(
     __in DWORD flags,
     __in PCWSTR applicationIdentification,
@@ -406,6 +409,8 @@ DWORD WINAPI WSManPluginStartup(
 // reason: If this is a system shutdown this will be WSMAN_PLUGIN_SHUTDOWN_SYSTEM.  
 // For WSMan service shutdown this will be WSMAN_PLUGIN_SHUTDOWN_SERVICE.  For an IIS host
 //shutdown this will be WSMAN_PLUGIN_SHUTDOWN_IISHOST.
+__declspec(dllexport)
+extern "C"
 DWORD WINAPI WSManPluginShutdown(
     __in PVOID pluginContext,
     __in DWORD flags,
@@ -453,6 +458,8 @@ DWORD WINAPI WSManPluginShutdown(
 // requestDetails the plug-in needs to call WSManPluginOperationComplete.
 // The shell is active until this time.
 // -----------------------------------------------------------------------------
+__declspec(dllexport)
+extern "C"
 VOID WINAPI WSManPluginShell(
     __in PVOID pluginContext,
     __in WSMAN_PLUGIN_REQUEST *requestDetails,
@@ -528,6 +535,8 @@ VOID WINAPI WSManPluginShell(
 // corresponding release function has been called. Failure to follow the contract
 // will result in errors being generated.
 // -----------------------------------------------------------------------------
+__declspec(dllexport)
+extern "C"
 VOID WINAPI WSManPluginReleaseShellContext(__in PVOID shellContext)
 {
     if ((NULL == shellContext))
@@ -560,6 +569,8 @@ VOID WINAPI WSManPluginReleaseShellContext(__in PVOID shellContext)
 // requestDetails the plug-in needs to call WSManPluginOperationComplete.
 // The command is active until this time.
 // -----------------------------------------------------------------------------
+__declspec(dllexport)
+extern "C"
 VOID WINAPI WSManPluginCommand(
     __in WSMAN_PLUGIN_REQUEST *requestDetails,
     __in DWORD flags,
@@ -593,6 +604,8 @@ VOID WINAPI WSManPluginCommand(
 // corresponding release function has been called. Failure to follow the contract
 // will result in errors being generated.
 // ---------------------------------------------------------------------------------
+__declspec(dllexport)
+extern "C"
 VOID WINAPI WSManPluginReleaseCommandContext(
     __in PVOID shellContext,
     __in PVOID commandContext
@@ -624,6 +637,8 @@ VOID WINAPI WSManPluginReleaseCommandContext(
 // For each piece of data the plug-in calls WSManPluginResultComplete to 
 // acknowledge receipt and to allow the next piece of data to be delivered.
 // -----------------------------------------------------------------------------
+__declspec(dllexport)
+extern "C"
 VOID WINAPI WSManPluginSend(
      __in WSMAN_PLUGIN_REQUEST *requestDetails,
     __in DWORD flags,
@@ -663,6 +678,8 @@ VOID WINAPI WSManPluginSend(
 // WSManPluginResultComplete.  The operation is marked as active until this 
 // time.
 // -----------------------------------------------------------------------------
+__declspec(dllexport)
+extern "C"
 VOID WINAPI WSManPluginReceive(
     __in WSMAN_PLUGIN_REQUEST *requestDetails,
     __in DWORD flags,
@@ -698,6 +715,8 @@ VOID WINAPI WSManPluginReceive(
 // of this callback may be many completion calls for the Signal, Receive, Command
 // and Shell operations.
 // -----------------------------------------------------------------------------
+__declspec(dllexport)
+extern "C"
 VOID WINAPI WSManPluginSignal(
                            __in WSMAN_PLUGIN_REQUEST *requestDetails,
                            __in DWORD flags,
@@ -723,7 +742,8 @@ VOID WINAPI WSManPluginSignal(
     }
 }
 
-
+__declspec(dllexport)
+extern "C"
 VOID WINAPI WSManPluginConnect(
     __in WSMAN_PLUGIN_REQUEST *requestDetails,
     __in DWORD flags,
diff --git a/src/powershell-native/nativemsh/pwrshplugin/pwrshheaders.h b/src/powershell-native/nativemsh/pwrshplugin/pwrshheaders.h
index d63dc56cb2..908e9055ff 100644
--- a/src/powershell-native/nativemsh/pwrshplugin/pwrshheaders.h
+++ b/src/powershell-native/nativemsh/pwrshplugin/pwrshheaders.h
@@ -15,8 +15,10 @@
 // pwszRuntimeVersion and pRuntimeVersionLength represents the size of pwszRuntimeVersion.
 // returns: 0 on success, non-zero on failure.
 _Success_(return == 0)  // EXIT_CODE_SUCCESS
-extern unsigned int GetCLRVersionForPSVersion(int iPSMajorVersion, 
-				          int iPSMinorVersion,
-					      size_t runtimeVersionLength,
-					      __inout_ecount_part(runtimeVersionLength , *pRuntimeVersionLength) wchar_t* pwszRuntimeVersion,
-					      __out_ecount(1) size_t* pRuntimeVersionLength);
\ No newline at end of file
+extern "C"
+__declspec(dllexport)
+unsigned int GetCLRVersionForPSVersion(int iPSMajorVersion, 
+                      int iPSMinorVersion,
+                      size_t runtimeVersionLength,
+                      __inout_ecount_part(runtimeVersionLength , *pRuntimeVersionLength) wchar_t* pwszRuntimeVersion,
+                      __out_ecount(1) size_t* pRuntimeVersionLength);
diff --git a/src/powershell-native/nativemsh/pwrshplugin/pwrshplugin.def b/src/powershell-native/nativemsh/pwrshplugin/pwrshplugin.def
index f80ff8ac2d..af45f5c785 100644
--- a/src/powershell-native/nativemsh/pwrshplugin/pwrshplugin.def
+++ b/src/powershell-native/nativemsh/pwrshplugin/pwrshplugin.def
@@ -15,4 +15,4 @@ WSManPluginSend
 WSManPluginSignal
 WSManPluginReceive
 WSManPluginConnect
-PerformWSManPluginReportCompletion
\ No newline at end of file
+PerformWSManPluginReportCompletion
diff --git a/src/powershell-native/nativemsh/pwrshplugin/pwrshplugin.h b/src/powershell-native/nativemsh/pwrshplugin/pwrshplugin.h
index 16efa0f3d2..61734b800b 100644
--- a/src/powershell-native/nativemsh/pwrshplugin/pwrshplugin.h
+++ b/src/powershell-native/nativemsh/pwrshplugin/pwrshplugin.h
@@ -1091,6 +1091,8 @@ public:
     }
 };
 
+__declspec(dllexport)
+extern "C"
 void WINAPI PerformWSManPluginReportCompletion()
 {
     // Now report the plugin completion, to indicate that plugin is ready to shutdown.