Random music player is a freeware program I have written to play music files (M4A, MP3, OGG, WMA) on any Windows computer.
Once installed, on first run you will be prompted to specify where your music files are located and away it goes.
You can pause the song, skip to the next random song or show the location of the song your playing by clicking the name.
The configuration cog lets you specify a new location or make the program auto start with windows.
Download link click here