Error message when a client that uses the WebDAV protocol to connect to an Exchange Server 2007 server: "Error 1000"

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Article ID: 977412 - View products that this article applies to.
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You have a computer that is running Microsoft Exchange Server 2007 and that has the Client Access Server (CAS) role installed. When a client that is using Web Distributed and Versioning (WebDAV) protocol connects to this server, the W3WP.exe process on the server may crash intermittently. Additionally, the following event is logged in the Application log:
Log Name: Application 
Source: Application 
Error Date: <Date Time> 
Event ID: 1000 
Task Category: (100) 
Level: Error 
Keywords: Classic 
User: N/A 
Computer: <Server Name> 
Description: Faulting application W3wp.exe, version <version>, time stamp <xxxxxxxx>, faulting module Exprox.dll, version <version>, time stamp <xxxxxxxx>, exception code 0xc0000005, fault offset <offset>, process id <xxxx>, application start time <xxxxxxxxxxxxxxxx>.


To resolve this problem, install the following update rollup:
972076 Description of Update Rollup 2 for Exchange Server 2007 Service Pack 2


For more information about the WebDAV protocol, visit the following Microsoft Web site:


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


Article ID: 977412 - Last Review: January 22, 2010 - Revision: 1.0
  • Microsoft Exchange Server 2007 Service Pack 2, when used with:
    • Microsoft Exchange Server 2007 Standard Edition
    • Microsoft Exchange Server 2007 Enterprise Edition
kbqfe kbexpertiseinter kbhotfixrollup kbsurveynew KB977412

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