At 12:52 PM 9/19/2009, you wrote:
What about apps? Will all 32-bit apps run under a 64-bit OS?
Not all of them... in Vista 64 they won't, and no 16 bit apps will run at all. However, I have read that Windows 7 PRO comes with a built in XP PRO (there is apparently a separate key for it) to allow it to run those apps.
