If you have multiple global address lists, only one global address list is displayed in the Microsoft Outlook Address Book on a client computer.
		  This address list is named "global address list" even if you gave this address
		  list a different name when you created it on a server that is running Microsoft  Exchange Server. 
This article
		  describes the criteria that Outlook uses to determine the global address list
		  that is displayed in the Address Book.
            
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