Will XP/Vista games utilize DirectX 11?

[megabomination]

Hi all. Will games designed to run with xp dx9 / vista dx10 gain any thing by running them in windows7 dx11 or will the 'virtual xp' thats built into windows7 run them as per normal?
I am wondering as im about to load all my games onto a 500gb hdd that I have just reformatted and tweaked and am planning on just using it for gaming.

 

[Taycat]

From my understanding and experience with programs created for XP/Vista, they will run in compatibility mode for as long as they are active. The same goes for any other program for older editions of Windows.

 

[megabomination]

So a game desighned for xp wont be able to utilize dx 11 as it is run in compatability mode which is really only normal xp anyway, correct?

 

[Jad Chaar]

Nope, xp uses dx 9. vista got a dx11 patch but windows 7 uses it more effectively