The simple answer: will 32 bit games run on Vista 64 bit?

I never see just a simple question with a simple answer.

Before Vista was released there was talk that 32 bit games would not run on
the 64 bit version.

Is this true or false?

If true then do you require addons/patches for Vista 64bit? Yes/No
Additionally, do you need patches to run 32 bit games on Vista 64bit? Yes/No


If yes (and if you know) Does Tripwire's game Red Orchastra ostfront (Played
through Steam) require anything?
--
Guy