Windows Server 2008 R2 Datacenter delivers an enterprise-class platform for deploying business-critical applications and large-scale virtualization on small and large servers. Improve availability, enhance power management, and integrate solutions for mobile and branch workers. Reduce infrastructure costs by consolidating applications with unlimited virtualization licensing rights. Scale from two to 64 processors. Windows Server R2 2008 Datacenter provides a foundation on which to build enterprise-class virtualization and scale-up solutions.