i had the same stuff before. Win9x or nt, 2000 have ASPI installed with os. but in winxp, it's removed. to those people who need it, you'll have to download the support by yourself. (mostly required for scanners on scsi)
making sure your scanner requires aspi which is one in here: http://www.adaptec.com/worldwide ... p?prodkey=ASPI-4.70