This file is an updated ASPI driver that is fully compatible with Windows 2000. This program does NOT look for adaptec products on your system before installing, unlike many of the programs I tried. If your CDR Writing software is failing under Windows 2000 like mine (CDR/Win) was, then this program will fix it. I virus scanned it before using it, but, as a precaution, make sure you virus scan it also. Hope this helps, all the best. Mark.