A new demo has been added in the Microsoft ISA Server demo portion.The detail of this demo is

Title: How to Configure HTTP Caching in ISA Server 2000

Objective: The objective of this demo is to teach you how to configure HTTP caching in ISA Server 2000. ISA Server can keep and use expired objects in the cache for a specified amount of time, if the source Internet site for an object becomes unavailable. An expired object is an object whose time-to-live period (TTL) has run out. Expiration policy balances your organization's need for fresh, current data against network performance. Depending on your particular organization's need, you can specify one of the following expiration policies for HTTP objects:

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