The W3wp.exe process may crash on an Exchange 2007 CAS server after you use Entourage to send a message that is larger than 48 KB

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Article ID: 956319 - View products that this article applies to.
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SYMPTOMS

Consider the following scenario:
  • You try to send a message that is larger than 48 kilobytes (KB) by using Entourage.
  • The message is sent through the Client Access server (CAS) role of Exchange Server 2007.
  • Your mailbox is located on the mailbox server role of a Windows Server 2008-based computer that is running Exchange Server 2007.
In this scenario, the W3wp.exe process crashes on the CAS server. Additionally, the following event is logged in the Application log:

Log Name: Application
Source: Application Error
Event ID: 1000
Task Category: (100)
Level: Error
Keywords: Classic
Description: Faulting application w3wp.exe, version 7.0.6001.18000, time stamp 0x47919ed8, faulting module exprox.dll, version 8.1.240.5, time stamp 0x47427a9a, exception code 0xc0000005, fault offset 0x0000000000068511, process id 0x%9, application start time 0x%10.

RESOLUTION

To resolve this problem, download Update Rollup 5 for Exchange 2007 Service Pack 1. For more information about Update Rollup 5 for Exchange Server 2007 Service Pack 1, see the following Exchange Help topic:
Description of Update Rollup 5 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: 956319 - Last Review: November 20, 2008 - Revision: 1.2
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: 
kbhotfixrollup kbfix kbexpertiseadvanced kbqfe KB956319

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