Talk about forcing the issue.
I tip my hat off to you Microsoft and a hearty F U!
If PC users are having trouble deciding whether to move over to Windows Vista, Microsoft's next-generation operating system, when it is released later this year, the fact that the fate of the Earth depends on it may tip the scales. Microsoft Game Studios today announced that it is developing Halo 2 for the PC. The game will be only for Vista, and it's being developed in partnership with the franchise's original developer, Bungie Studios. The PC version will include Halo 2, the bonus maps that came in the Multiplayer Map Pack, and the ability to "build, create, and customize their own multiplayer levels." No release date or other details have been announced