From what I know kmixer is gone. Windows re-did the whole mixer/audio control to better support the new HD codecs available. I have not played with Vista nor do I intend to do so.
Roaddog- I sent you a rather long email so you can better understand what we are trying to do. The soundcard will do no processing at all. NONE! All EQ, Crossover, Time alignment is done via software (VST effects). You will need a minimum of a Pentium 4/Athlon to do this, although the 64 bit processors or even the dual core are extremely attractive for this. YOu have a rather steep learning curve ahead of you since we have been working on this since October.