If you had a known good and working regular Creative Labs driver, I don't know why you would need the Daniel K drivers, but anything is worth a shot.
I think I tried the Daniel K's when I had Vista and Creative Labs, but I can't recall if they helped.
Why not uninstall and then reinstall whatever driver you were using?
Creative Labs is generally terrible for driver support.
You can bypass that by getting another sound card--even an external USB.