Please see the Classic Pronto files section and download ProntoEdit 4. Might also want to check out the Classic Pronto FAQ that talks about restrictions of lowest number COM port.

[Link: files.remotecentral.com]

There is also a utility written by Daniel that enables 'Developer Mode' which allows you to see the IR code data. Have a search for this. Believe it is called ProntoIni or something like that. Been many years since I touched it.