Internet Security and Acceleration Server 2004 Solution Center

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Support for the Windows Server 2003 Network Access Quarantine Control feature in ISA Server 2006 and in ISA Server 2004
Describes ISA Server support for the Quarantine Control feature of Windows Server 2003.
ISA 2004 caching
Describes cache settings in ISA Server 2004 and provides instructions about how to enable and to disable caching.
Configuration changes that are made to Routing and Remote Access when you install Internet Security and Acceleration (ISA) Server 2004
Describes some of the changes that are made to your existing Routing and Remote Access configuration when you upgrade that configuration to ISA Server 2004.

Internal firewall client computers and SecureNAT client computers cannot connect to external servers
Fixes a problem by which Internal Firewall client computers and SecureNAT clients cannot connect to external servers through ISA Server 2004. The ISA Server always uses an MSS value of 1460 and not the correct MSS value.
ISA Server 2004 may stop responding when IP addresses from multiple subnets are bound to the same adaptor
Fixes a problem in which ISA Server 2004 stops responding when you configure an adaptor that has two IP addresses from two different subnets, and then you enable an application filter.
You cannot access an ISA Server 2004 Web site through a hardware balancer that is configured to use local triangulation
Describes a problem that occurs when you try to access an ISA Server 2004 Web site though a hardware balancer that is configured to use local triangulation. A hotfix available to resolve this problem.

Error message after you use the ISA2KExport.exe tool to migrate ISA Server 2000 to ISA Server 2004, Standard Edition
Describes a resolution for a "This tool requires Microsoft Internet Security and Acceleration (ISA) Server 2000 Standard Edition and ISA Server Service Pack 1 (or later)" error message in ISA Server 2000.
Very large log files are generated in ISA Server 2004
Explains why you may have very large log files in the folder where your ISA Server firewall logs are stored. Includes a workaround to help lower the size of the log files.
Cannot configure access to Exchange Server between two routed networks in ISA Server 2004
Describes an issue where you cannot use an access rule to provide RPC filtering between two routed networks.