System Hangs with ASPI4DOS.SYS Version 3.0 or Earlier

• Microsoft Windows operating system versions 3.1, 3.11
• Microsoft Windows for Workgroups versions 3.1, 3.11

SYMPTOMS

When you use Adaptec's ASPI4DOS.SYS driver versions 3.0 or earlier, you may experience problems executing File Manager within Microsoft Windows for Workgroups or Microsoft Windows 3.1. After you start File Manager, the cursor may remain as an hourglass and the system may subsequently stop responding (hang).

Your system may also stop (hang) when you attempt to save files.

CAUSE

Adaptec's 1542B SCSI controller card requires ASPI4DOS.SYS driver version 3.0a or later to operate correctly with version 3.1 of Microsoft Windows or Windows for Workgroups.

ASPI4DOS.SYS, version 3.0, works correctly with Microsoft Windows version 3.0.

RESOLUTION

You need to obtain an updated driver from Adaptec. Contact Adaptec to obtain the latest driver.

MORE INFORMATION

If you attempt to share a CD-ROM drive on a Windows for Workgroups machine, and you experience frequent system hangs, VSERVER errors or general protection (GP) faults, check your ASPI4DOS.SYS driver. It may be too new for your system BIOS.

ASPI4DOS.SYS drivers dated 6/91 or earlier do not work with MS-DOS versions greater than 3.0.

For more information on ASPI4DOS.SYS, contact Adaptec technical support.

The Adaptec product included here is manufactured by a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding this product's performance or reliability.