FIX: Memory Leak in Svchost.exe

Retired KB Content Disclaimer

This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.


You may encounter a memory leak in the Remote Procedure Call Server Service (RPCSS, or Svchost.exe).


RPCSS makes synchronous calls to track object identifiers (OIDs) for clients as part of the Distributed Component Object Model (DCOM) pinging mechanism. During this process, RPCSS acquires a handle and memory, which are not released if these clients are not pumping window messages efficiently. This causes a handle and memory resource leak in the Svchost.exe process.


To resolve this problem, obtain Microsoft COM+ Rollup Hotfix 14. For additional information, please see the following article in the Microsoft Knowledge Base:

302845 INFO: Availability of Windows 2000 Post-Service Pack 2 COM+ Hotfix Rollup Package 14
A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends 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: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.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

More Information

For additional information, click the article number below to view the article in the Microsoft Knowledge Base:

293631 FIX: DCOM Application Fails with RPC_E_DISCONNECTED

Article ID: 309615 - Last Review: Oct 6, 2005 - Revision: 1