The game is coded with Direct3D 10. What's a better way to show it off than to do it using their biggest game franchise?
Vista may only work with a minimal amount of hardware compared to current OS's, but you will also need a $300-$400 gfx card to even play it. If your PC's hardware even supports those cards, chances are that the Manufacturer already has drivers for Vista.
Frankly, Halo 2 isn't enough for me to spend that kind of cash. I would rather buy any of the game consoles than to purchase a card that is almost as much, if not more.
Besides, the company I work with is doing an overhaul, and we are moving to a new floor on a different building this september. Vista will then be pushed out to new hardware. We get Office 2007 in a couple days
