http://blogs.technet.com/b/pki/archive/2009/12/22/server-2008-r2-adcs-migration-guide-beta.aspxThe beta version of the new 2008 R2 ADCS Migration Guide is now available at http://technet.microsoft.com/en-us/library/ee126140(WS.10).aspx . The guide describes the necessary steps for a successful migration of enterprise or standalone CAs from Windowsen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)