Good Day, I am trying to pass through my user's windows credentials to the WI 4.0 site. I have a Windows 2000 (Domain A) mixed mode domain with a one way trust to a Windows 2003 (Domain B)native mode domain. Users are presented with all applications from the Windows 2000 domain (A) when they log on with pass through authentication but they receive no applications from the Windows 2003 domain (B). If they log on with a explicit logon they receive applications from both farms and life is good. My WI site is set to the xml server in both domains. Thanks in advance and please let me know if I am not being clear. I have posted this message on the Citrix forms but had no reply thus is why I am posting here. (probably should have started here first anyways!)