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Article ID: 2508872 - Last Review: July 7, 2011 - Revision: 1.0

SYMPTOMS

Assume that there are lots of Offline Address Books (OABs) in a Microsoft Exchange Server 2007 environment. In this scenario, the W3WP.exe process in the Autodiscover application pool consumes excessive CPU resources on the Exchange Server 2007 Client Access servers. Therefore, the Autodiscover service is almost unresponsive, and lots of users cannot connect to the Exchange Server 2007 servers.

RESOLUTION

To resolve this issue, install the following update rollup:
2509911  (http://support.microsoft.com/kb/2509911/ ) Description of Update Rollup 4 for Exchange Server 2007 Service Pack 3

STATUS

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

MORE INFORMATION

For more information about the Autodiscover service, visit the following Microsoft website:
General information about the Autodiscover service (http://technet.microsoft.com/en-us/library/bb232838(EXCHG.80).aspx)
For more information about OABs, visit the following Microsoft website:
General information about OABs (http://technet.microsoft.com/en-us/library/bb124351(EXCHG.80).aspx)

APPLIES TO
  • Microsoft Exchange Server 2007 Service Pack 3, when used with:
    • Microsoft Exchange Server 2007 Enterprise Edition
    • Microsoft Exchange Server 2007 Standard Edition
Keywords: 
kbqfe kbfix kbsurveynew kbexpertiseinter kbhotfixrollup KB2508872
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