Organizations today are requiring more and more IT services and features to meet the ongoing business demands they face. Therefore server operating systems must support an extensible array of services that provide for availability, reliability, scalability, and more—all within a secure environment. Microsoft Windows Server 2003 provides many new tools, services, and features that make a compelling case for upgrading from Windows NT Server 4.0.

For further information see the Microsoft website about Windows Server 2003 more..