"Show this folder as an e-mail Address Book"

Hello everyone,

After a mandatory a power down of Exchange Server 2003 Enterprise R2, all of
our users no longer have access to their contact lists in Outlook 2003 as an
Address Book while drafting a new email message.

We have had to go to each users desk, go to the properties of each Contact
list in the "My Contacts" folder and check "Show this folder as an e-mail
Address Book".

There MUST be a way to automate this! Does anyone know of a VB Script, Bat
file, Reg Key that will automatically perform this function for each user
during the logon process?