Microsoft KB Archive/169559

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SMS: Remote Control Agent Shows Memory Leak with 3Com NIC

Article ID: 169559

Article Last Modified on 10/27/2006


  • Microsoft Systems Management Server 1.2 Standard Edition

This article was previously published under Q169559


The Systems Management Server Remote Control agent (Wuser32.exe) shows a memory leak on systems using a 3COM 3C590 or 3C905 network adapter card with bus mastering enabled. A large number of page file bytes are consumed and not released, which eventually results in virtual memory errors, and may cause the system to stop responding. The problem does not occur if bus mastering is disabled on the 3C590 adapter. However, there is no option to disable bus mastering on the 3C905 adapter.


To work around this problem, do any of the following:

  • Disable bus mastering if possible. For more information on how to do this, see the following article in the Microsoft Knowledge Base:

    141299 Disabling Bus Mastering On 3Com 3C590 PCI Network Cards

  • Disable the Systems Management Server Remote Control service on the Windows NT client computer.
  • Use a different network adapter card.


Microsoft has confirmed this to be a problem in Systems Management Server version 1.2. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

Additional query words: prodsms wuser32 sms interface

Keywords: kbnetwork kbremoteprog kbtshoot KB169559