Halo 2 vista question

If anyone knows how to get H2: vista to Work on windows xp can you please help me? I have been trying for awhile now and I have had no luck.

Halo 2 for PC is not compatible with XP but there is a unofficial patch you can download to make it work. I don’t kow what it’s called but try to google maby Halo 2 win XP patch.