Article ID: 941634 - View products that this article applies to.
Consider the following scenario:
This problem occurs only if the Web Proxy Filter is enabled for the HTTP protocol.
This problem occurs because the Web Proxy Filter incorrectly uses sockets and connections that are created by other application filters. Therefore, the Web Proxy Filter cannot be chained to other application filters.
To resolve this problem, apply the hotfix rollup package that is described in Microsoft Knowledge Base article 942639. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/942639/ )Description of the ISA Server 2006 hotfix package: September 24, 2007
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.