Exchange Server 2003 is the latest version of Microsoft's collaboration, presence, and messaging product. Enhancing features found in Exchange 2000, Exchange 2003 extends the messaging platform with new features and leverages the stability, reliability, and functionality of the underlying Windows Server 2003 technology. Microsoft also understands that real-time enterprise is here, and it's here to stay. Microsoft embraces today's business goals: help people work together in today's workplace, quickly and easily, whenever and wherever they need to; ensuring employees can communicate and collaborate with their peers and/or experts successfully; and cutting costs while boosting productivity. Using the new features in Outlook Web Access, Outlook Mobile Access, or Outlook 2003 and Exchange Server 2003 in conjunction with Microsoft Live Communications Server 2005 provides a complete solution for real-time, converged applications with a familiar user interface. See Part III "Exchange Server Email Clients: OWA, OMA, and Outlook 2003" in this book for information on the messaging, collaboration, and presence features of Exchange Server 2003.