Microsoft KB Archive/943502

= Excessive memory may be consumed by Exchange Server 2007 on a Windows Server 2003-based computer =

Article ID: 943502

Article Last Modified on 11/15/2007

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APPLIES TO


 * Microsoft Exchange Server 2007 Standard Edition
 * Microsoft Exchange Server 2007 Enterprise Edition

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SYMPTOMS
Excessive memory may be consumed by Microsoft Exchange Server 2007 on a Windows Server 2003-based computer. Symptoms may include paging and more CPU use when memory is being flushed out frequently. This problem may also cause the following symptoms:
 * The application pool resets in Internet Information Services (IIS). Additionally, event IDs 1010, 1011, and 1013 are logged.
 * Microsoft Office Outlook Web Access users must be reauthenticated.



CAUSE
This problem occurs because of Microsoft .NET Framework CLR memory management inefficiencies.



MORE INFORMATION
We recommend that you install hotfix 942027 on all Exchange Server 2007 computers. This hotfix is important for Client Access Servers (CAS), especially if a computer is servicing multiple protocols. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

942027 FIX: You may notice that the memory load is very high when you run an application that is built on the .NET Framework 2.0

Additional query words: OWA

Keywords: kbtshoot kbexpertiseinter KB943502

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