Winlogon Leaks Because of SMTPSVC Performance Counters
Article ID: 192265
Article Last Modified on 11/1/2006
APPLIES TO
- 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
This article was previously published under Q192265
SYMPTOMS
Over time, the Windows NT system responsiveness appears sluggish, and
clients may report a gradual decrease in system performance. Users
connecting to the server over the network may receive RPC Server Busy
errors.
Side effects of the memory leak may include "Out of Virtual Memory"
messages or the system stops responding completely when memory is totally
exhausted.
By tracking the handle count and the amount of Private Bytes for
Winlogon.exe, it can be observed that, over time, the values continue to
increase.
CAUSE
When running the resource kit utility Srvinfo.exe against a server
remotely handles to the registry are not closed if the server has the SMTP
service installed.
The following key was being repeatedly opened and not closed:
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SMTPSVC\Performance
RESOLUTION
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 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 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.
Keywords: kbhotfixserver kbqfe kbbug kbfix kbqfe KB192265