http://blogs.technet.com/b/activedirectoryua/archive/2011/04/28/why-do-people-use-offline-root-certification-authorities.aspxTo get the answer to that and other questions, like "How do I patch an offline root CA?" see the new TechNet Wiki article Offline Root Certification Authority (CA). del.icio.us Tags: certification authority , CA , AD CS , Active Directory Certificateen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)