Microsoft KB Archive/157678

= DEC TLZ07 DAT Drive Not Recognized After Service Pack 5 =

Article ID: 157678

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Server 3.51

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This article was previously published under Q157678



SYMPTOMS
After installing Service Pack 5 on your Alpha NT 3.51 server, you may not be able to access DEC TLZ07 4MM DAT Tape Drive and may receive the following errors in the event log:

Event ID: 7026

Source: Service Control Manager

Description: The following boot-start or system-start driver(s) failed to load: 4mmdat.sys

Event ID: 7000

Source: Service Control Manager

Description: The 4mmdat service failed to start due to the following error: the system cannot find the device specified



CAUSE
The 4mmdat.sys driver that is replaced by Service Pack 5 is incompatible with these drives.



RESOLUTION
Connect to DEC's World Wide Web site at:

http://www.compaq.com/support/

Download the DECTAPE file containing all of the drivers. The original file on the computer will be 4mmdat.sys, dated 05-26-95 36,752K. The file to replace it with in the %SystemRoot%\System32\Drivers subdirectory will be the one you just downloaded named 4mmdat.sys dated 11-02-94 50,624K.

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STATUS
Microsoft has confirmed this to be a problem in Windows NT version 3.51. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

Additional query words: prodnt

Keywords: kbhardware kbsetup KB157678

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