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ITsVISTA KB-Link: KB968967

The CPU usage of an application or a service that uses MSXML 6.0 to handle XML requests reaches 100% in Windows Server 2008, Windows Vista, Windows XP Service Pack 3, or other systems that have MSXML 6.0 installed

Consider the following scenario:

  1. An application or service runs in Windows Server 2008, Windows Vista, Windows XP Service Pack 3 (SP3) or another system that has Microsoft XML Core Services (MSXML) 6.0 installed.
  2. The application or service uses MSXML 6.0 to handle XML requests.

In heavy stress situations, the CPU usage of an application or service reaches 100%. If this problem occurs on a uniprocessor computer, the whole system crashes. If this problem occurs on a multiprocessor computer, the whole system encounters high CPU usage. In Task Manager, you may see that the CPU usage of one processor is 100%.

For example, the MonitoringHost.exe process in the System Center Operations Manager 2007 encounters high CPU usage because of this problem.

There is a download that resolves this issue. See Hotfixes for details.
32-bit Download: Contact Microsoft
64-Bit Download: Contact Microsoft

For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB968967.

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