http://blogs.msdn.com/b/charles_sterling/archive/2008/05/19/enterprise-library-4-0-available.aspxMicrosoft patterns & practices is excited to announce the latest addition to the p&p library of software architecture guidance: Enterprise Library 4.0 May 2008 Release for Visual Studio 2008   – MSDN site: http://msdn.microsoft.comen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)