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| When you run a program that uses the Windows Management Instrumentation (WMI) service in Microsoft Windows XP, the memory that is used by a remote procedure call (RPC) cache may not be freed, and a memory leak may occur. The RPC cache may grow so large that it causes the program and Windows XP to become unresponsive. |
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Credit:
The information has been provided by Juha-Matti Laurio .
The original article can be found at: http://support.microsoft.com/kb/890196/EN-US/
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Vulnerable Systems:
* Rpcrt4.dll library version 5.1.2600.2575 and prior
This problem may occur if many expired and unused security contexts are generated every second. (Security contexts are generated by the program that you are running.) The RPC cache is cleaned up at a rate of nine security context entries every 10 seconds. If the security contexts are generated at a faster rate than the cache is cleaned up, the cache grows larger and eventually causes the problem.
Vendor Status:
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 XP service pack that contains this hotfix.
To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. 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/default.aspx?scid=fh;[LN];CNTACTMS
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