Ah right, ok - yes, in theory, though you never know with Windows - seacrh for PJPro's post on optimising windows playback for ideal setup - I think you need to check there are ASIO drivers for the card (this applies to XP, not Vista)......
Forgive me if im wrong but ive googled that card a bit for other reasons and some sites say it is not Vista compatible, so you may wish to check further.