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FIX: The Firewall service (WSPSRV.EXE) may crash when the firewall policy rules are reevaluated in Forefront Threat Management Gateway 2010

Symptoms
When the Firewall service (WSPSRV.EXE) in Microsoft Forefront Threat Management Gateway 2010 reevaluates the firewall policy rules, the service may crash. If this occurs, you may find that the following event is logged in the Application log:

Log Name: Application
Source: Microsoft Forefront TMG Firewall
Date: datetime
Event ID: 14057
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: Computer_Name
Description:
The Firewall service stopped because an application filter module C:\Program Files\Microsoft Forefront Threat Management Gateway\MSPHLPR.dll generated an exception code C0000005 in address 00000000713B893E when function CompleteAsyncIO was called. To resolve this error, remove recently installed application filters and restart the service.

Cause
This issue may occur because of a timing issue when the Firewall service processes requests.
Resolution
To resolve this problem, install the hotfix package that is described in the following Microsoft Knowledge Base article:
2735208 Rollup 3 for Forefront Threat Management Gateway (TMG) 2010 Service Pack 2

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

Properties

Article ID: 2761895 - Last Review: 01/10/2013 18:02:00 - Revision: 1.0

Microsoft Forefront Threat Management Gateway 2010 Service Pack 2

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