Disk Error Messages with ASPI2DOS.SYS Device Driver (94331)
The information in this article applies to:
• Microsoft MS-DOS operating system 6.0
• Microsoft MS-DOS operating system 6.2
• Microsoft MS-DOS operating system 6.21
• Microsoft MS-DOS operating system 6.22
This article was previously published under Q94331
ASPI2DOS.SYS is an Adaptec driver for the Adaptec AHA 1520 and AHA 1522
SCSI controllers. If SMARTDrive is used to cache a drive when ASPI2DOS.SYS
is installed, you may receive the following error message from the Adaptec
When you run Microsoft Anti-Virus (MSAV.EXE), you receive the following
Similar errors may also occur while running Microsoft Defragmenter
(DEFRAG.EXE) and Microsoft Undelete (UNDELETE.EXE).
NOTE: The SMARTDrive double-buffer driver does not prevent these errors.
This problem occurs if you use the ASPI2DOS drivers shipped with EZSCSI
versions 2.02 and 2.03.
This problem was corrected in EZSCSI versions 2.04, 3.0, and later. These
are available for free from Adaptec.
This problem usually occurs during frequent alternating reads and writes by
programs such as Microsoft Anti-Virus and SMARTDrive.
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