The DCMedia player can be closed on Windows players by doing the following:

  1. Plug a keyboard into the player
  2. Press the escape key (you may need to press alt+tab a couple of times to make sure the player has focus)
  3. When the player quits, you'll be taken to the desktop and will see a window called DS Network Manager Agent
  4. Uncheck the Restart DC Media Player if not running checkbox at the bottom of the DS Network Manager Agent