1. Add reference wmp.dll
2. Write on the top code - using WMPlib;
3. Create object - WMPLib.WindowsMediaPlayer wplayer = new WMPLib.WindowsMediaPlayer();
4. Link your mp3 - wplayer.URL = "link mp3";
5. Play mp3 - wplayer.controls.play();
6. Stop mp3 - wplayer.controls.stop();
At wplayer.controls.* have more commands with control mp3.