Hello. I have a client running SQL Server 2008 R2 Express on Windows 2008 R2 Standard who has multiple external users accessing an application using remote desktop. The application they need to access is installed in C:/Users/Public and uses ODBC with a TCP/IP connection. The multiple users will use a shortcut on their desktop to access the application in the Public folder. This is working fine for administrative users and one standard user. The problem is a second standard user. I have an ODBC entry for them on the User tab, it connects to the database just fine when I test the connection through ODBC administrator. However, when this login accesses the application via a shortcut, I get an error message as: "The server does not exist .. [DBMSPLCN]". Since the direct ODBC connection is working, I don't know error code details (eg.17 or 53 or 6) The SQL Server implementation uses TCP/IP, I've run clicnfg.exe under this user's login (though, as it's the same computer, not sure what that would accomplish). I've made SQL Server use port 1433 and bypassed SQLBrowser by setting a direct port connection to 1433 for this user. This user login can run the application fine if they're promoted to an admin (as for an install running the app directly). The client uses ActiveDirectory, but I'm not sure to what extent. This seems like a permissions problem, but I don't know what would make one standard user different from another. Any suggestions?