I have a Visual Studio 2005 project with both win32 and x64 configurations.
I recently moved the project files to a new machine running Windows 7 ultimate, after installing VS-2005 and the 64-bit prerequisites. The Configuration Manager shows the x64 platform, but attempting to build the x64 configuration does nothing. If I look at Tools->Options->Projects and Solutions->VC++ Directories -> Platform, there are only three choices: win32, PocketPC, and SmartPhone. On my old machine there were four choices (x64 is the missing one).
Did I miss an installation step?