Holders of Exchange 2000 licenses which included Software Assurance were entitled to receive Live Communications Server as an upgrade, along with Exchange 2003; however, Live Communications Server Client Access Licenses were purchased as normal for new users.
Software Assurance'ı içeren Exchange 2000 lisans sahipleri Live Communications Server'ı Exchange 2003'le birlikte yükseltme olarak almaya hak kazandı; Ancak, Live Communications Server İstemci Erişim Lisansı, yeni kullanıcılar için normal olarak satın alındı.