what is mmwi?

mmwi is short for 'MediaMonkey Web Interface' and is a (wait for it) web interface for MediaMonkey :-)

It's a program running parallel to MediaMonkey that allows you to remote control the media player from any modern browser including Internet Explorer, Firefox, Safari and stock Android browsers.
It's a media player remote control.

mmwi lets you

• control basic playback
  play/pause, next and previous song, and volume
• control basic player options
  AutoDJ, Shuffle, Repeat and Equalizer
• search and browse your entire MediaMonkey music library by
• stream music directly to your browser side-by-side with MediaMonkey control
• turn off your computer automatically using the sleep timer
• password protect parts of the interface
• customize themes

It is fast and works in a standard web browser.