Microsoft KB Archive/945803

= The Microsoft Firewall service may crash when you use a custom Web filter in ISA Server 2004 to add headers to HTTP responses =

Article ID: 945803

Article Last Modified on 12/28/2007

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APPLIES TO


 * Microsoft Internet Security and Acceleration Server 2004 Standard Edition
 * Microsoft Internet Security and Acceleration Server 2004 Enterprise Edition

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SYMPTOMS
When you use a custom Web filter in Microsoft Internet Security and Acceleration (ISA) Server 2004 to add headers to HTTP responses, the Microsoft Firewall service may crash. This problem typically occurs when the Web server first sends an HTTP &quot;100-Continue&quot; response before it sends the complete HTTP response.

When this problem occurs, the follow event is logged in the System log: Event Type: Error

Event Source: Service Control Manager

Event Category: None

Event ID: 7034

Date:

Time:

User: N/A

Computer:

Description:

The Microsoft Firewall service terminated unexpectedly. It has done this 1 time(s).

Additionally, the following event is logged in the Application log: Event Type: Error

Event Source: Microsoft Firewall

Event Category: None

Event ID: 14057

Date:

Time:

User: N/A

Computer:

Description:

The Firewall service stopped because an application filter module c:\Program files\Microsoft ISA Server\w3filter.dll generated an exception code C0000005



Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that this article describes. Apply this hotfix only to systems that are experiencing this specific problem.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Prerequisites
To apply this hotfix, you must have ISA Server 2004 Service Pack 3 installed. To obtain the latest service pack for ISA Server 2004, visit the following Microsoft Web site:

http://www.microsoft.com/technet/downloads/isa/2004/servicepacks/default.mspx

Restart requirement
You do not have to restart the computer after you apply this hotfix. However, services that are related to ISA Server 2004 automatically restart during the hotfix installation process.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

ISA Server 2004 with Service Pack 3, Enterprise Edition


STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Keywords: kbexpertiseinter kbbug kbfix kbhotfixserver kbqfe KB945803

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