The Microsoft Exchange Server 5.5 Service Pack 1 contains updated versions of the software listed herein ("Updated Software") and may contain additional software components ("Additional Software"). The Updated Software is licensed under the same terms and conditions contained in the End User License Agreement ("EULA") you acquired with Microsoft Exchange Server 5.5. The Additional Software is licensed under the terms and conditions contained in the end-user license agreement that accompanies such Additional Software (each such end user license agreement referred to as a "New EULA"). If you do not have a valid license for Microsoft Exchange Server 5.5, or if you do not agree to be bound by the terms of the EULA or each New EULA, as applicable, you are not authorized to use the Updated Software or Additional Software, as applicable.