Originally Posted by saikojay
does crysis require vista?
No, the game is compatible with XP, Vista 32bit, 64bit and is DX9 & 10 out of the box. Obviously if you want the DX10 stuff you need Vista and a DX10 card.
Also if you play in XP you don't have the Very High Setting ( but you can enable it with some sort of tweak [do a google search for that]) Anyway that setting is useless right now because is far too much for current Video Card hardware so there is no point playing in that setting unless you really want to.