Add or Remove an address book in Outlook

Add an address book in Outlook
On the Tools menu, click E-mail Accounts.
Under Directory, click Add a new directory or address book, and then click Next.
To add the type of address book you want, do one of the following:
Add an address book using an Internet directory service (LDAP)
Click Internet directory service (LDAP), and then click Next.
In the Server name box, type the name of the server your Internet service provider or system administrator gave you.
If the server you specified is password protected, select the This server requires me to log on check box, and then type your user name and password.
Click More Settings.
Under Display Name, type the name for the LDAP address book that you want to be displayed in the Show names from the list in the Address Book dialog box.
Under Connection Details, type in the port number provided to you by your internet service provider (ISP) or system administrator.
Click the Search tab, and then change the server settings as needed.
The search time-out setting specifies the number of seconds Microsoft Outlook spends searching the LDAP directory to resolve names in a message. You can also limit the number of names listed in the Address Book after a successful search on a name.
Under Search Options, if the Search base box is not filled in, type the distinguished names provided for you by your administrator.
Click OK, click Next, and then click Finish.

Add an additional address book
Click Additional address books.
Click the address book you want to add, and then click Next.
Note You must exit and restart Outlook to use the added address book.

Remove an address book
On the Tools menu, click E-mail Accounts.
Under Directory, select View or change existing directories or address books, and then click Next.
Click the address book you want to delete.
Click Remove.
Click Finish.