Read the full Microsoft IT Technical Case Study: Reducing Bandwidth Utilization with Windows 7 and Windows Server 2008 R2 BranchCache:

Does the increasing cost of wide area network (WAN) access restrict you from providing your branch offices with the data center services they need? Learn how Microsoft IT uses the BranchCache™ feature available in the Windows® 7 operating system and the Windows Server® 2008 R2 operating system to improve performance and availability to branch offices. Services at the branch office level include file and print management, offline folder redirection, operating system and application distribution, and patch management. By implementing BranchCache, Microsoft IT significantly improved service availability while maintaining network traffic encryption including HTTPS and IPsec and reducing WAN usage and server demand. Using BranchCache, Microsoft IT expects to save money while increasing branch user productivity.