Memory Leak in Winmgmt Process When Running Network Load Balancing

Article translations Article translations
Article ID: 276538 - View products that this article applies to.
This article was previously published under Q276538
This article has been archived. It is offered "as is" and will no longer be updated.
Expand all | Collapse all


When you are running Network Load Balancing (NLB) on a Windows 2000-based server, system responsiveness may appear sluggish over time, and clients may report a gradual decrease in system performance. You may also receive "Out of Virtual Memory" error messages, and the computer may stop responding (hang) when the memory is completely exhausted.

If you track the amount of private bytes for Winmgmt.exe, you may note that over time it increases without ever decreasing. You can view this behavior by using the Windows 2000 Performance snap-in by selecting the following counter to monitor:
Object: Process
Instance: Winmgmt
Counter: Private Bytes


To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack


Microsoft has confirmed that this is a problem in Microsoft Windows 2000.

This problem was first corrected in Windows 2000 Service Pack 2.


Article ID: 276538 - Last Review: October 21, 2013 - Revision: 3.2
  • Microsoft Windows 2000 Service Pack 1
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Service Pack 1
kbnosurvey kbarchive kbbug kbfix kbqfe KB276538

Contact us for more help

Contact us for more help
Connect with Answer Desk for expert help.
Get more support from