Windows Server 2003 R2 extends the Windows Server 2003 operating system, providing a more efficient way to manage and control access to local and remote resources while easily integrating into your existing Windows Server 2003 environment. Windows Server 2003 R2 provides a scalable, security-enhanced Web platform, seamless interoperability with UNIX-based systems and enables new scenarios including simplified branch server management, improved identity and access management, and more efficient storage management. Building upon the increased security, reliability, and performance provided by Windows Server 2003 Service Pack 1 (SP1), Windows Server 2003 R2 extends connectivity and control to local and remote resources. Organizations can benefit from reduced costs and increased efficiencies gained through enhanced management and control over resources across the enterprise. Windows Server 2003 R2 allows you to maintain the performance, availability, and productivity benefits of a local branch office server while avoiding issues typically associated with branch office server solutions such as connectivity limitation and management overhead.