Posting a link to wnasp32.dll is redundant as a system file is also required for aspi to work so you should link to the Adaptec ASPI download site. Most people using XP should be using IOCTL anyway. ASPI is only needed on 9x, which already has a built in ASPI anyway. Only the internal plugins will receive any support from the developers, and several third party CDR plugins no longer work in 1.7 (they require updating)