ittyMIDI Player is downloaded as crippleware. Crippleware is designed to let the user try the software before buying it. The software will run within certain limits until it is unlocked with a registration code. In the Player's case, it will run with all options except that it will run only 15 seconds of any MIDI song. The only way to unlock ittyMIDI Player is to enter a valid registration code.
You received a registration code in your confirmation e-mail when you purchased ittyMIDI Player. When you start ittyMIDI Player, a registration screen appears requesting your registration code. Enter that code in this screen to finish the registration process. The registration screen will appear every time you start the Player until you enter the registration code.
The makers of ittyMIDI would like to request and encourage legal use of
ittyMIDI Player and the MIDI files it plays. We worked hard at making ittyMIDI
Player and are sure that those who make MIDI songs work just as hard. Please
respect their property and ours.