Microsoft KB Archive/154785

= WinNT 3.51 Service Packs (SPs) Incorrectly Update Newer SPs =

Article ID: 154785

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Workstation 3.51
 * Microsoft Windows NT Server 3.51

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This article was previously published under Q154785





SYMPTOMS
It is possible to replace a newer version of a Service Pack for Windows NT 3.51 with an older version. This is not intended behavior.



CAUSE
Version information was not updated for Service Packs 1, 2, 3 and 4 for Windows NT 3.51. It is possible for any of these service packs to install over a newer service pack.



RESOLUTION
Windows NT will now detect that a newer-version Service Pack is installed and not install an older Service Pack over the newer version.

Note: If Service Pack 3 is installed over Service Pack 4, please refer to the following article in the Microsoft Knowledge Base:

148262Removing Windows NT 3.51 SP 4 May Cause Logon Failures



STATUS
Microsoft has confirmed this to be a problem with Windows NT version 3.51 Service Packs 1, 2, 3, and 4. This problem was corrected in the latest Windows NT 3.51 U.S. Service Pack. For information on obtaining the Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces):

S E R V P A C K

Additional query words: prodnt

Keywords: kbnetwork KB154785

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