http://msmvps.com/blogs/rohanthomas/archive/2006/01/25/81797.aspxFinally its out.. Check it out on MSDN ... Read what Tom , the product manager of EntLib has to say in his blog . Overview from MSDN Enterprise Library–January 2006 contains the following general purpose application blocks: Caching Application Block enCommunityServer 2008.5 SP2 (Build: 40407.4157)