Q: When creating a public address book the option Show this folder as an e-mail Address Book is greyed out.

A: You need to add the Outlook Address Book service to the mail profile.

  1.  Select the tools menu in outlook.
  2. Select e-mail accounts
  3. Select view or change existing directories > next.

You should see an Outlook Address Book entry in there if not, choose Add, Additional Address Books, select Outlook Address Book...add it.

You will then be able to tick the "Show this folder as an e-mail Address Book." box.