|If the Contacts are in a wab file, then that's not an Outlook Address Book; it's used by Outlook Express. Did you originally have Windows 7? The reason I ask is because Outlook Express wasn't included with Internet Explorer versions 7 and newer.|
Regardless, Outlook keeps all the eMails, Contacts, Calendar, Tasks, etc in a pst file. If you want to import a wab file into Outlook, all you need to do is to run the Import Wizard.