Bump Tk version to 8.4.7. Build into tcltk directory.
diff --git a/PCbuild/_tkinter.vcproj b/PCbuild/_tkinter.vcproj
index a2405f1..7179369 100644
--- a/PCbuild/_tkinter.vcproj
+++ b/PCbuild/_tkinter.vcproj
@@ -21,7 +21,7 @@
 				Name="VCCLCompilerTool"
 				Optimization="2"
 				InlineFunctionExpansion="1"
-				AdditionalIncludeDirectories="..\..\tcl84\include,..\Include,..\PC"
+				AdditionalIncludeDirectories="..\..\tcltk\include,..\Include,..\PC"
 				PreprocessorDefinitions="NDEBUG;WIN32;_WINDOWS;WITH_APPINIT"
 				StringPooling="TRUE"
 				RuntimeLibrary="2"
@@ -39,11 +39,11 @@
 				Name="VCCustomBuildTool"/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="..\..\tcl84\lib\tk84.lib ..\..\tcl84\lib\tcl84.lib odbccp32.lib"
+				AdditionalDependencies="..\..\tcltk\lib\tk84.lib ..\..\tcltk\lib\tcl84.lib odbccp32.lib"
 				OutputFile="./_tkinter.pyd"
 				LinkIncremental="1"
 				SuppressStartupBanner="TRUE"
-				AdditionalLibraryDirectories="C:\Program Files\Tcl\lib"
+				AdditionalLibraryDirectories=""
 				GenerateDebugInformation="TRUE"
 				ProgramDatabaseFile=".\./_tkinter.pdb"
 				SubSystem="2"
@@ -89,7 +89,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\tcl84\include,..\Include,..\PC"
+				AdditionalIncludeDirectories="..\..\tcltk\include,..\Include,..\PC"
 				PreprocessorDefinitions="_DEBUG;WIN32;_WINDOWS;WITH_APPINIT"
 				RuntimeLibrary="3"
 				UsePrecompiledHeader="2"
@@ -105,11 +105,11 @@
 				Name="VCCustomBuildTool"/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="..\..\tcl84\lib\tk84.lib ..\..\tcl84\lib\tcl84.lib odbccp32.lib"
+				AdditionalDependencies="..\..\tcltk\lib\tk84.lib ..\..\tcltk\lib\tcl84.lib odbccp32.lib"
 				OutputFile="./_tkinter_d.pyd"
 				LinkIncremental="1"
 				SuppressStartupBanner="TRUE"
-				AdditionalLibraryDirectories="C:\Program Files\Tcl\lib"
+				AdditionalLibraryDirectories=""
 				GenerateDebugInformation="TRUE"
 				ProgramDatabaseFile=".\./_tkinter_d.pdb"
 				SubSystem="2"
@@ -157,7 +157,7 @@
 				AdditionalOptions=" /USECL:MS_ITANIUM"
 				Optimization="2"
 				InlineFunctionExpansion="1"
-				AdditionalIncludeDirectories="{MSSDKPATH}\include\Win64\atl;{MSSDKPATH}\include\Win64\crt;{MSSDKPATH}\include\Win64\crt\sys;{MSSDKPATH}\include\Win64\mfc;..\..\tcl84\include,..\Include,..\PC"
+				AdditionalIncludeDirectories="{MSSDKPATH}\include\Win64\atl;{MSSDKPATH}\include\Win64\crt;{MSSDKPATH}\include\Win64\crt\sys;{MSSDKPATH}\include\Win64\mfc;..\..\tcltk\include,..\Include,..\PC"
 				PreprocessorDefinitions="NDEBUG;WIN32;_WINDOWS;WITH_APPINIT"
 				StringPooling="TRUE"
 				BasicRuntimeChecks="0"
@@ -179,11 +179,11 @@
 			<Tool
 				Name="VCLinkerTool"
 				AdditionalOptions=" /MACHINE:IA64 /USELINK:MS_SDK"
-				AdditionalDependencies="..\..\tcl84\lib\tk84.lib ..\..\tcl84\lib\tcl84.lib odbccp32.lib"
+				AdditionalDependencies="..\..\tcltk\lib\tk84.lib ..\..\tcltk\lib\tcl84.lib odbccp32.lib"
 				OutputFile="./_tkinter.pyd"
 				LinkIncremental="1"
 				SuppressStartupBanner="TRUE"
-				AdditionalLibraryDirectories="C:\Program Files\Tcl\lib"
+				AdditionalLibraryDirectories=""
 				GenerateDebugInformation="TRUE"
 				ProgramDatabaseFile=".\./_tkinter.pdb"
 				SubSystem="2"