I have a very strange situation. I have installed PN and PNAgent with Pass-through authentication enabled. Everything works well except WebInterface connection (WI requires explicit authentication). A user is logged in to his workstation using his everyday name "Alex". He can see and access all his applications available thru PNAgent - great. From time to time the user needs access to a Citrix farm using his tech account so he connects to WebInterface with other name "AlexTech". He can see all applications available to "AlexTech" but can not access them - he gets the message "You do not have access to logon to this session". I checked it and it looks as applications lunches with currently logged in to a workstation user name, in this case "Alex", instead of "AlexTech" If I reinstall the client and not allow pass-through authentication during the client installation, everything works good. Does anyone have any idea how it can be fixed? Citrix PS 4.0 Client version 10.0 Thanks in advance for any help Zygmunt