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Winlogon Leaks Because of SMTPSVC Performance Counters

This article was previously published under Q192265
This article has been archived. It is offered "as is" and will no longer be updated.
Over time, the Windows NT system responsiveness appears sluggish, andclients may report a gradual decrease in system performance. Usersconnecting to the server over the network may receive RPC Server Busyerrors.

Side effects of the memory leak may include "Out of Virtual Memory"messages or the system stops responding completely when memory is totallyexhausted.

By tracking the handle count and the amount of Private Bytes forWinlogon.exe, it can be observed that, over time, the values continue toincrease.
When running the resource kit utility Srvinfo.exe against a serverremotely handles to the registry are not closed if the server has the SMTPservice installed.

The following key was being repeatedly opened and not closed:

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
152734 How to Obtain the Latest Windows NT 4.0 Service Pack

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 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.

Article ID: 192265 - Last Review: 10/10/2013 20:51:36 - Revision: 2.2

Microsoft Windows NT Server 4.0, Terminal Server Edition, Microsoft Windows NT Workstation 4.0 Developer Edition, Microsoft Windows NT Server 4.0 Standard Edition

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