FreezeTool - improve support for MSVC on 64-bit windows

direct/src/showutil/FreezeTool.py

@@ -93,6 +93,8 @@ class CompilationEnvironment:
                 self.MSVC = os.environ['VCINSTALLDIR']
             elif (Filename('/c/Program Files/Microsoft Visual Studio 9.0/VC').exists()):
                 self.MSVC = Filename('/c/Program Files/Microsoft Visual Studio 9.0/VC').toOsSpecific()
+            elif (Filename('/c/Program Files (x86)/Microsoft Visual Studio 9.0/VC').exists()):
+                self.MSVC = Filename('/c/Program Files (x86)/Microsoft Visual Studio 9.0/VC').toOsSpecific()
             elif (Filename('/c/Program Files/Microsoft Visual Studio .NET 2003/Vc7').exists()):
                 self.MSVC = Filename('/c/Program Files/Microsoft Visual Studio .NET 2003/Vc7').toOsSpecific()
             else: