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

Title: How to Use MAPI Rich-Text Format for Mail-Enabled Users or Contacts in Microsoft Exchange Server 2003

Objective: The objective of this demo/tutorial is to teach you how to use MAPI Rich-Text format for mail-enabled users or contacts in Microsoft Exchange Server 2003. You can select whether your mail-enabled users or contacts can receive Exchange e-mail in MAPI rich-text format. MAPI allows the use of character attributes (such as bold, color, and italic) in messages. This format also allows messages to have attachments.

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