The Microsoft Multimedia Control, or MMControl, is a Visual Basic tool that plays media files. You will not find MMControl to be one of the default tools in your toolbox, but you can add it to your list of controls with the Components list. You can add MMControl so you can integrate audio or video files to your project. However, MMControl accepts only one file at a time, so if you want to create your own MP3 player, you will need to use an array to store your track list.