The W3wp.exe process may intermittently stop responding, and event ID 1000 is logged in Exchange Server 2007 Service Pack 1

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Article ID: 953539 - View products that this article applies to.
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SYMPTOMS

On a server that is running Microsoft Exchange Server 2007 Service Pack 1 (SP1) Client Access Server (CAS), the W3wp.exe process may intermittently stop responding.

Additionally, the following event is logged in the Application log:

Event Type: Error
Event Source: Application Error
Event Category: (100)
Event ID: 1000
Description:
Faulting application w3wp.exe, version version number, faulting module exprox.dll, version version number, fault address address.

Note When this problem occurs, you cannot access network resources through this CAS server from a client computer.

RESOLUTION

Update information

To resolve this problem, install Update Rollup 3 for Exchange Server 2007 Service Pack 1 (SP1) on the server.

For more information about Update Rollup 3 for Exchange Server 2007 Service Pack 1, see the following Exchange Help topic:
Description of Update Rollup 3 for Exchange Server 2007 Service Pack 1
For more information about how to obtain the latest Exchange service pack or update rollup, see the following Exchange Help topic:
How to Obtain the Latest Service Pack or Update Rollup for Exchange 2007

STATUS

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

Properties

Article ID: 953539 - Last Review: July 8, 2008 - Revision: 1.1
APPLIES TO
  • Microsoft Exchange Server 2007 Service Pack 1, when used with:
    • Microsoft Exchange Server 2007 Enterprise Edition
    • Microsoft Exchange Server 2007 Standard Edition
Keywords: 
kbbug kbfix kbqfe kbhotfixrollup KB953539

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