DOCUMENT:Q157678 18-FEB-2002 [winnt] TITLE :DEC TLZ07 DAT Drive Not Recognized After Service Pack 5 PRODUCT :Microsoft Windows NT PROD/VER::3.51 OPER/SYS: KEYWORDS:kbhw kbsetup kbHardware ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Server version 3.51 ------------------------------------------------------------------------------- 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. The third-party contact information included in this article is provided to help you find the technical support you need. This contact information is subject to change without notice. Microsoft in no way guarantees the accuracy of this third-party contact information. 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 : kbhw kbsetup kbHardware Technology : kbWinNTsearch kbWinNT351search kbWinNTSsearch kbWinNTS351 kbWinNTS351search Version : :3.51 ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2002.