Use Default Login Attribute UseDefaultLogin (UDL) Purpose Determines where the driver reads login credentials. Valid Values 0 | 1 Behavior If set to 0 (Disabled), login credentials are read from the Windows Registry, the connection string, or the Logon to Informix dialog box. If set to 1 (Enabled), login credentials are read directly from the Informix registry. Default 0 (Disabled) GUI Tab Connection tab