Designed for medium to large businesses, Windows Server 2003, Enterprise Edition, is the recommended operating system for servers running applications such as networking, messaging, inventory, and customer service systems; databases; and e-commerce Web sites. Windows Server 2003, Enterprise Edition, delivers high reliability, performance, and superior business value.??Windows Server 2003, Enterprise Edition, differs from Windows Server 2003, Standard Edition, primarily in its support for high-performance servers and its ability to cluster servers for greater load handling. These capabilities provide reliability that helps ensure systems remain available even if problems arise.