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The W3WP.exe process in the Autodiscover application pool consumes excessive CPU resources on the Exchange Server 2007 Client Access serversArticle ID: 2508872 - View products that this article applies to. SYMPTOMSAssume 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. RESOLUTIONTo 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
STATUSMicrosoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. MORE INFORMATIONFor more information about the Autodiscover service, visit the following Microsoft website: General information about the Autodiscover service For more information about OABs, visit the following Microsoft website:
(http://technet.microsoft.com/en-us/library/bb232838(EXCHG.80).aspx)
General information about OABs
(http://technet.microsoft.com/en-us/library/bb124351(EXCHG.80).aspx)
PropertiesArticle ID: 2508872 - Last Review: July 7, 2011 - Revision: 1.0 APPLIES TO
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