How to set your Windows Media Player (WMP) 10/11 to ALWAYS PROMPT before acquiring a license:

1. Click "Tools"->"Options..." and select the "Privacy" tab.
2. In the "Enhanced playback and device experience" group uncheck "Acquire licenses automatically for protected content".
3. Click the "Aplly" button. Click the "OK" button.

You should have this as your common setting anyway, because it will save you from folks using the DRM URL to deliver I.E. exploits.