Welcome to Microsoft Exchange Server 2007 Service Pack 1 (SP1). This document contains the following sections: Features that are available in Exchange 2007 SP1 Installing Exchange 2007 SP1 Known issues Microsoft Outlook Web Access client features Legal notice Features Available in Exchange 2007 SP1 Exchange 2007 SP1 adds several new features to the already robust set of Exchange 2007 features. For detailed information about how to use these new features, see What's New in Exchange Server 2007 SP1 in the Exchange 2007 SP1 online Help. You can also read information about these features in the Exchange 2007 SP1 Help that is included with Exchange 2007 SP1. To access the Exchange 2007 SP1 Help, use one of the following methods: Open Setup for Exchange 2007 SP1. In the Setup wizard, click Read about Microsoft Exchange Server 2007 SP1. If you have not installed Exchange 2007 SP1, access the Exchange 2007 Help file (exchhelp.chm) from the following location on your SP1 source:\Setup\ServerRoles\Common. If you have installed Exchange 2007 SP1, open the Exchange Management Console, and then click the Help icon on the toolbar.