Ĩesky | english
AEP (Auto Enrollment Proxy) is a Proxy for Windows Domain-Controller environments, that acts as an Microsoft Enterprise CA for the Domain, and forwards the requests to a CA like CAcert.
http://directory.fedoraproject.org/wiki/Windows_Certificate_Auto_Enrollment ( link does not work; try go to http://directory.fedoraproject.org/ and search for "Windows_Certificate_Auto_Enrollment").