ASPI, the Advanced SCSI Programming Interface provides an API originated by Adaptec which standardizes communication on a computer bus between a SCSI host adapter on the one hand and SCSI (and ATAPI) peripherals on the other.
History
ASPI was developed by Adaptec in the early 1990s. It was originally designed to support SCSI drives. Support for IDE and ATAPI interface was later added.
Microsoft has licensed the interface for used with its earlier operating systems. At the same time Microsoft developed SCSI Pass Through Interface (SPTI), an in-house substitute that worked on NT platform. After the release of Windows XP, Microsoft dropped ASPI in favor of its own SPTI. User may still download ASPI from Adaptec.
A number of CD/DVD application vendors also offer their own implementation of ASPI layer.
Driver
ASPI was provided by these drivers:
- DOS: ASPI4DOS.SYS
- Windows 3.1x: WINASPI.DLL
- Win32:
- WNASPI32.DLL, APIX.VXD and ASPIENUM.VXD (Windows 95, 98 and ME);
- WNASPI32.DLL, ASPI32.SYS (Windows NT, 2000, XP)
FreeDOS also supports ASPI with USBASPI.SYS driver.
See also
External links
Adaptec's ASPI driver
Pinnacle Systems' ASPI driver
Technical info
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