net_admin wrote:

I'm trying to use the details in the contacts, but the option to
enable: Show this folder as an e-mail Address Book - is grayed out.

The Outlook Address Book service presents the contents of the Contacts
folder to you via the Address Book interface so you can select recipients.
Five seconds at the Microsoft support site produces this:

http://support.microsoft.com/kb/197577/en-us
--
Brian Tillman [MVP-Outlook]