The process of adding another user's Contacts folder to the address book display is somewhat involved:

1. Start with a profile that logs directly onto the other user's mailbox, not your own.

2. On the Properties dialog for the other user's Contacts folder, make sure that it's set to display in the Outlook Address Book and give it a display name other than contacts, such as Joe's Contacts.

3. Close Outlook.

4. In Control Panel | Mail, edit the *same profile* to change the mailbox from the other user's to your own. On the Advanced tab of the Exchange Server service, add the other user's mailbox as a secondary mailbox.

5. Restart Outlook, and you should see the Joe's Contacts in your Outlook Address Book as well as your own Contacts folder.