Microsoft KB Archive/234593

= Windows NT 4.0 Tcpip.sys Hotfixes Dated 4/28/99 to 5/28/99 Replaced =

Article ID: 234593

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Server 4.0, Terminal Server Edition
 * Microsoft Windows NT 4.0 Service Pack 5
 * Microsoft Windows NT Workstation 4.0
 * Microsoft Windows NT 4.0 Service Pack 5

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This article was previously published under Q234593



SYMPTOMS
Post-SP5 hotfixes for the Tcpip.sys driver dated April 28, 1999 to May 28, 1999 contain a regression that could cause your multiprocessor computer to stop responding (hang).



CAUSE
This problem occurs because of changes made in earlier hotfixes included an error in locking code. This error can cause your multiprocessor computer to "deadlock" or hang.



Windows NT Server or Workstation 4.0
To resolve this problem, obtain the latest service pack for Windows NT 4.0 or the individual software update. For information on obtaining the latest service pack, please go to:


 * http://www.microsoft.com/windows/servicepacks/ -or-


 * 152734how to obtain the latest windows nt 4.0 service pack

For information on obtaining the individual software update, contact Microsoft Product Support Services. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web:

http://support.microsoft.com/directory/overview.asp

Windows NT Server 4.0, Terminal Server Edition
To resolve this problem, obtain the latest service pack for Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

152734 How to Obtain the Latest Windows NT 4.0 Service Pack



STATUS
Microsoft has confirmed that this is a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition.

This problem was first corrected in Windows NT Server 4.0 Service Pack 6 and Windows NT Server 4.0, Terminal Server Edition Service Pack 6.



MORE INFORMATION
These hotfix files should be replaced with the newer files.

Affected hotfixes are described by the following articles:

223450 TCP Initial Retransmission Timer Adjustment Added to Windows NT

224585 TCB Hash Function Modified to Improve Network Performance

230307 Slow Performance in TCP/IP When Reconnecting

230381 TCP/IP Dead Gateway Detection May Not Work if ARP Cache Empty

232512 TCP/IP May Retransmit Packets Prematurely

Additional query words: multi processor multi-processor

Keywords: kbbug kbfix kbqfe kbhotfixserver KB234593

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