System Center Configuration Manager (SCCM) leverages BITS and BranchCache to download patches from a local distribution point and conserve WAN usage. Check out this blog post that provides an overview of how SCCM leverages this feature and how to enable it.

http://blogs.msdn.com/b/steverac/archive/2010/02/06/configuring-sccm-and-branch-cache.aspx

Alex Ng

SDET – Windows Manageability