What i did was i opened NVIDEA control panel==>manage 3d settings==> then go to program settings and add a program to customize and from there on it is pretty mutch the same as nHancer sett the filters the way you prefere, i sett them to application controled.
http://i158.photobucket.com/albums/t...h4/nvidea2.jpg
http://i158.photobucket.com/albums/t...sh4/nvidea.jpg
Hope this is not to complicated to understand.