Neil Wang, Developer, presented a test for the Windows AD “Join the domain” and “unjoin” scenarios. The protocol exchange that occurs on the wire when a Windows 7 client joins a Windows 2008 R2 domain were analyzed at the 2011 Active Directory Windows Protocols Plugfest. Zhenduo Zhang, Developer, stepped through the code for a test case. Dean Wells, Senior Program Manager and Billy Jack, Senior Software Development Engineer, answered AD protocol interoperability questions. The scenario is described in MS-DISO, a Windows Protocol Document.