Memory Leak in Rpcss.exe When Freeing ORPC Extends (303818)


The information in this article applies to:

  • Microsoft Windows 2000 Server SP1
  • Microsoft Windows 2000 Server SP2
  • Microsoft Windows 2000 Advanced Server SP1
  • Microsoft Windows 2000 Advanced Server SP2
  • Microsoft Windows 2000 Professional SP1
  • Microsoft Windows 2000 Professional SP2
This article was previously published under Q303818

SYMPTOMS

By using Performance Monitor, you might observe a continuous increase in private bytes for the Rpcss process. This memory leak in Rpcss.exe occurs with COM and DCOM programs.

CAUSE

This issue occurs because a virtual 8-byte allocation is not freed in Rpcss.exe.

RESOLUTION

Windows 2000

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows 2000 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix should have the following file attributes or later:
   Date       Time   Size     File name
   --------------------------------------
   20-Sep-01  14:48  941,328  ole32.dll
   20-Sep-01  14:48  428,304  rpcrt4.dll
   20-Sep-01  14:48  185,104  rpcss.dll

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

MORE INFORMATION

The private bytes increase in 16-byte or 32-byte allocation units. For additional information about how to obtain a hotfix for Windows 2000 Datacenter Server, click the article number below to view the article in the Microsoft Knowledge Base:

265173 The Datacenter Program and Windows 2000 Datacenter Server Product

For additional information about how to install multiple hotfixes with only one reboot, click the article number below to view the article in the Microsoft Knowledge Base:

296861 Use QChain.exe to Install Multiple Hotfixes with One Reboot

Modification Type:MinorLast Reviewed:10/12/2005
Keywords:kbHotfixServer kbQFE kbbug kbfix kbQFE kbWin2000PreSP3Fix KB303818
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