1. Make sure the MIDI files for the hardware device's OS upgrade are unzipped. Typically, you can double-click the .zip file and Winzip will come up. Extract them to a folder you can find easily- for example- C:\MIDI.

2. Make sure there is a cable plugged into the MIDI interface's output port to the hardware device's in port.

3. Go to Start - Settings - Control Panel - Multimedia - MIDI.

4. Change the preferred MIDI playback device to the MIDI port that corresponds to the port you chose in step #3. Click OK to get out of the control panel.

5. Depending on what version of Windows Media Player you have installed, you may or may not have playlist capability. Windows Media Player 7 and above have playlist capability, which means you can load all of the MIDI files in and it will play them in sequence.

6. Launch Media Player by going to Start - Programs - Accessories - Entertainment - Windows Media Player.

7. Go to My Computer - C drive and find the folder you unzipped the MIDI files to and open it. Highlight all files with CTRL-A and drag and drop the first file (all other files will come with it) into the playlist of Media Player.

If your Windows Media Player does not have playlist computability, simply double-click each file in sequence.

8. Prepare your hardware device to receive midi, and click Play on Media Player.