Procedures for Outlook 2010:
- Click Start -> Settings -> Control Panel.
- Double Click Mail .
- Click E-mail Accounts button.
- Choose View or change existing directories or address books from the Directory group. Then click the Next button.
- Click the Add button
- Choose Additional Address Books and click Next
- Choose Outlook Address Book and click Next
- Then click Finish
- Now, Open your Outlook
- From the left panel, highlight Contacts
- Right click on it and choose Properties
- Change to the Outlook Address Book tab then check the option Show this folder as an e-mail address book
- Click OK