Windows 98 and Windows 2000 included the ASPI software as part of the
default install.
Windows XP does *not* include the ASPI software.
Therefore one thing might be to go to the Adaptec web site, then download
and install the ASPI software.
http://www.adaptec.com/worldwide/support/suppdetail.jsp?sess=no&language=En
glish+US&prodkey=ASPI-4.70
FWIW: The Glossary on the Adaptec site says the following ...
ASPI
Advanced SCSI programming Interface. A standard SCSI software interface
that acts as a liaison between host adapters and SCSI device drivers. ASPI
enables host adapters and device drivers to share a single SCSI hardware
interface.
ASPI MANAGER
A software module that provides an interface between ASPI modules, a host
adapter board, and the SCSI devices connected to the adapter. A single ASPI
manager can handle multiple Input/Output requests from multiple ASPI
modules. ASPI managers are put requests from multiple ASPI modules. ASPI
managers are written for a specific operating system - such as DOS, OS/2 or
Unix-and a specific family of host adapter boards. The Adaptec EZ-SCSI ASPI
managers for DOS are ASPI4DOS, ASPIEDOS and ASPI2DOS.
ASPI MODULE
Device-level code specific to a particular kind of SCSI device that
communicates with the ASPI manager. The Adaptec EZ-SCSI ASPI modules are
ASPIDISK. ASPICD.