Windows Vista and 64-Bit Processors

[Nieldo]

atm I have a 64 bit processor but am not running a 64 bit windows. I assume that I am currently not getting better performance out of my processor as my last one was 2.2ghz and so is my current one.

Will indows vista support both 32 and 64 bit?or will they have two different versions of the operating syetm?

 

[Nieldo]

So if I install windows vista 64 bit version will I still be able to run all my other programs? Or do I have to wait for the devs of the diferent programs to release 64 bit versions?