Multiple events are logged when you enable Web caching and set the FPCCacheConfiguration.QueueRequests COM property to True in ISA Server 2004

Consider the following scenario. You enable Web caching on a computer that is running Microsoft Internet Security and Acceleration (ISA) Server 2004. You also set the FPCCacheConfiguration.QueueRequests COM property to True.

Note By default, the QueueRequests COM property is set to False on a computer that is running ISA Server 2004.

In this scenario, the ISA Server computer stops responding. Additionally, the following events are logged in the Application log:

Event Type: Error
Event Source: Microsoft ISA Server Control
Event Category: None
Event ID: 14079
Date: Date
Time: Time
User: N/A
Computer: ISA2004EE
Description:
Due to an unexpected error, the service fwsrv stopped responding to all requests. Stop the service or the corresponding process if it does not respond, and then start it again. Check for related error messages.

Event Type: Error
Event Source: Microsoft Firewall
Event Category: None
Event ID: 14057
Date: Date
Time: Time
User: N/A
Computer: ISA2004EE
Description:
The Firewall service stopped because an application filter module C:\Program Files\Microsoft ISA Server\w3filter.dll generated an exception code C0000005 in address 6477A3A0 when function CompleteAsyncIO was called. To resolve this error, remove recently installed application filters and restart the service.

Event Type: Error
Event Source: Microsoft ISA Server 2004
Event Category: None
Event ID: 1000
Date: Date
Time: Time
User: N/A
Computer: ISA2004EE
Description:
Faulting application wspsrv.exe, version 4.0.3443.610, stamp 442d35a4, faulting module w3filter.dll, version 4.0.3443.610, stamp 442d3590, debug? 0, fault address 0x0008a3a0.

The following event is logged in the System log:

Event Type: Error
Event Source: Service Control Manager
Event Category: None
Event ID: 7031
Date: Date
Time: Time
User: N/A
Computer: ISA2004EE
Description:
The Microsoft Firewall service terminated unexpectedly. It has done this 1 time(s). The following corrective action will be taken in 60000 milliseconds: Restart the service.

To resolve this problem, install the hotfix that is described in Microsoft Knowledge Base article 919621. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

To work around this problem, follow these steps:

1. Set the FPCCacheConfiguration.QueueRequests COM property to False.
2. Disable the ISA Server cache.

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

For more information about the FPCCacheConfiguration.QueueRequests COM property, visit the following Microsoft Developer Network (MSDN) Web site: