Visual Studio 2010 Setup Projects and x64 Support

I was taking the Windows Azure CmdLets project and getting it into an MSI just to make it easier to deploy in a nice package.  I ran into problems with the Setup project not being able to properly establish the right registry settings for an x64 environment. Even though you set the target platform on the Setup project to x64 the InstallUtil.lib that get’s run is still x86.  In order to have it