The Microsoft Firewall service stops unexpectedly on a computer that is running ISA Server 2004 or ISA Server 2006

This article has been archived. It is offered "as is" and will no longer be updated.
Symptoms
On a computer that is running Microsoft Internet Security and Acceleration (ISA) Server 2004 or Microsoft Internet Security and Acceleration (ISA) Server 2006, the Microsoft Firewall service stops unexpectedly. This problem occurs only on multiprocessor computers, on multicore processor computers, or on hyper-threaded computers.

When this problem occurs, the following event is logged in the System log:

Event Type: Error
Event Source: Service Control Manager
Event Category: None
Event ID: 7034
Date: Date
Time: Time
User: N/A
Computer: Computer
Description:
The Microsoft Firewall service terminated unexpectedly. It has done this 1 time(s).

The following event is logged in the Application log:

Event Type: Error
Event Source: Microsoft Firewall
Event Category: None
Event ID: 14057
Date: Date
Time: Time
User: N/A
Computer: Computer
Description:
The Firewall service stopped because an application filter module c:\Program files\Microsoft ISA Server\w3filter.dll generated an exception code C0000005

Cause
This problem occurs because of an access violation in the W3filter.dll module.
Resolution
To resolve this problem for ISA Server 2004, apply the hotfix rollup package that is described in Microsoft Knowledge Base article 943202. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
943202 Description of the ISA Server 2004 hotfix package: October 1, 2007
To resolve this problem for ISA Server 2006, apply the service pack described in Knowledge Base article 954258. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
954258 How to obtain the latest Internet Security and Acceleration (ISA) Server 2006 service pack
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 how to install ISA Server hotfixes and updates, click the following article number to view the article in the Microsoft Knowledge Base:
885957 How to install ISA Server hotfixes and updates
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Properties

Article ID: 943200 - Last Review: 01/16/2015 02:12:32 - Revision: 3.0

Microsoft Internet Security and Acceleration Server 2004 Enterprise Edition, Microsoft Internet Security and Acceleration Server 2004 Standard Edition, Microsoft Internet Security and Acceleration Server 2006 Standard Edition, Microsoft Internet Security and Acceleration Server 2006 Enterprise Edition

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