A new demo has been added in the Exchange Server 2003 demo portion.The detail of this demo is

Title: How to Remove an Address for Mail-Enabled Users in Microsoft Exchange Server 2003

Objective: The objective of this demo is to teach you how to remove an address for mail-enabled users in Microsoft Exchange Server 2003. You can remove an e-mail address from a mailbox-enabled user or a mail-enabled recipient. This is helpful when the recipient no longer needs an address of a certain address type.

If you are a subscriber, then click the Demos link in the navigation menu to view the complete list of demos