Microsoft Windows Server Enterprise Edition - license & software assurance

Windows Server Enterprise Edition enables you to deploy highly available and scalable applications on industry-standard PC hardware. The result: a highly productive infrastructure optimized for running all your business-critical applications and services. Common examples of applications suitable for Windows Server Enterprise Edition include networking, messaging, inventory and customer service systems, databases, e-commerce Web sites and file and print servers.

Regardless of the size of your organization, Windows Server Enterprise Edition is a good choice for running applications that must be available at all times. It also gives growing organizations the ability to ensure the availability of critical applications, while allowing them to scale those applications both up and out to meet increased demand.