Designed for medium to large businesses, Windows Server 2003, Enterprise Edition, is an operating system for servers running applications such as networking, messaging, inventory, and customer service systems; databases; and e-commerce Web sites. Enterprise Edition delivers high reliability, performance, and superior business value and is available in both 32-bit and 64-bit versions. It offers support for high-performance servers and can be used to cluster servers for greater load handling. These capabilities provide reliability that helps ensure systems remain available--even if problems arise.