Hi, I think I got the same problem here. Clean install XPe FR2 on W2k SP3 (German versions). Starting a published app from programm neighbourhood from inside the published desktop uses a different ica session, going through the whole logon process again. When logging onto the published desktop eventlog complains about a DCOM error, being unable to find the file ssoncom.exe although it is where it is supposed to be. I opened a case with Citrix earlier this week, let's see what they come up with, but it's good to know that someone else is also experiencing this. Jan >>> michael.hagberg@xxxxxx 12.09.2002 16:00:01 >>> Server: W2K SP2 and MF XPa SP2/FR2 Clients: Win32 6.30.1050 If I have a server farm running MF XPa with FR1 and logon to the desktop to one of the servers and on that desktop start the Passthrough client (session within a sessio) and set it up to use Single signon when I start other applications it works fine. If I upgrade the XP server to FR2 it still works fine. If I have a clean W2K server and install with the MF XPa FR2 media from start and logon to a desktop I can't get Single signon to work with the Passthrough client. If on the other hand logon to the console and start the client the Single signon works fine. When I logon with an ICA session to a desktop the ssonsrv.exe wont start and even if I start it manually the Signle signon wont work. Any suggestions Thanks a million Michael ********************************************** This weeks sponsor 99Point9.com 99Point9 helps solve your unresolved technical server-based questions, issues and incidents. http://www.99point9.com *********************************************** For Archives, to Unsubscribe, Subscribe or set Digest or Vacation mode use the below link. http://thethin.net/citrixlist.cfm