The current version (2.09) comes with two program files, msgtext.exe and mt.js. msgtext.exe is a command line program and mt.js has a graphical interface. However, the easiest way to use msgtext.exe is to just drag an MSG file onto msgtext.exe. It automatically creates the TXT version in the same folder as the MSG file. Unfortunately, this information is not in the readme file, but it's incredible easy to use once you know that you can drag and drop.