I haven’t heard of core audio for windows. My brother is more the audio guy these days, I’ll ask him what he knows. I’m pretty sure that the sound cards I currently have don’t support core audio for windows.
I just asked my brother if he heard of core audio for windows and he said he hasn’t heard of it (he uses Reaper for production and ProTools for clients (as far as we know Core is a Mac deal)) but he did say that sound card companies and DAW makers (at least Reaper) are starting to use WASAPI (Windows Audio Session API)which is suppose to be like a core audio API for windows. Maybe this is what your talking about. If so it sounds like this is starting to be used.
If it is the case I don’t mind buying a new soundcard though. The two m-audio interfaces I have now are older and really not the best. I’ll go to the Motu and RME sites and see what they currently have and support.
great news!