1. Attempt a connection using the parameters as passed in.
2. If DBTC = Y, attempt a trusted connection.
3. Attempt Logging on using the User ID and Password supplied, if any. This is for backward compatibility.
4. If it's a PC Other File, prompt the user repeatedly until a connection is successfully made or the dialog is cancelled. (This applies only to interactive LANSA processes running on Microsoft Windows.)
5. Fatal error.