Ooh, I get the confusion.
That or run the Vista version with two hacked joysticks, it that's even possible.
Yeah, I was imaging if I used Geometry Wars on Vista, I would take two hacked analog PC joysticks, and by hacked I mean remove them from their plastic enclosures and bottom mount them to a CP. Then it begs the question, in Geometry wars on Vista, can you even map movement to Player 1 Joy X & Y axes and shooting to Player 2 Joy X & Y axes?
But that's just me asking rhetorical questions in a derailed thread about a project that I probably will never undertake in my lifetime. Do not attempt to answer these types of rhetorical questions.