Digicarpc is a tool that works to replay audio files in Windows using ASIO drivers. The program includes a selection of 336 buttons organized into 8 pages (with 42 buttons on each one).
Each one of these buttons can be assigned to an audio file: WAV, MP3, MID, MPG, AVI, MOV, WMA, WMV, BWF, AIFF, AC3, JPG and BMP, and each button has parameters (volume, fade in, fade out, loop, etc). The buttons can be configured to activate the mouse, keyboard, GPI, etc, and functions like Play, Stop and Pause.
It is a very simple and completely free program with a very colourful interface.