http://blogs.technet.com/mikelag/archive/2009/02/09/new-windows-dynamic-cache-service-for-64-bit-windows-2003-servers.aspxIf you've ever had an issue where low memory conditions were causing working set trimming issues due to excessive use of the System File Cache, then we have just released a new service that can be used to help alleviate this issue called Microsoft Windowsen-USCommunityServer 2.1 SP1 (Build: 61025.2)