The "xxxxx is too advanced for XP, downgrade to Vista or else" fraud gets a little deeper here, where in fact Halo 2 does not even require DX10 but still "requires" Vista!
...That is, until you tweak it like so:
http://www.ps3forums.com/showthread.php?t=81123
(Warning: Link may advocate dirty, dirty software piracy)
So now you can enjoy the full 4 hours of Halo 2's mediocrity even on this old dinosaur we call XP. Multiplayer doesn't work of course, since it must be patched to do so and the patches ALSO "require" Vista... no workaround for those yet. Also there are the occasional glitches you'd expect from an amateur hack (a "loader" in this case), like for instance one of the levels won't load without some coaxing. But apparently it's fully playable, and the bugs aren't such an issue since... well it's Halo... so you'll only want to play it once.
Halo 2 on XP (instructions)
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Halo 2 on XP (instructions)
Last edited by Caydr on 08 Dec 2007, 21:52, edited 1 time in total.