Originally Posted by Neodude112320
Can a 64bit operating systems run 32bit programs?
Also,What programs are optimized for 64 bit?
Yes absolutely! Vista 64 can run any 32 or 64 bit application, including games.
Here are some 64 bit games that are out there;
Bet On Soldier: Blood Sport
Codename: Panzers (Phase one)
Colin McRae Rally 2005
Chronicles of Riddick: Escape from Butcher Bay
Shadow Ops: Red Mercury
Unreal Tournament 2004
World of Warcraft
WWII Tank Commander
S.T.A.L.K.E.R. Shadow of Chernobyl
Also, the next photoshop will be 64-bit only as well.