I have already tried to play a drm protected file (specifically a trailer of a movie) that i downloaded. Media Player downloaded the security upgrade and after that, a window showed up telling me that licensing has been disabled for this file. So , i didn't watch it. I believe that you mean that i have to watch a drm protected file in order to get the indivbox.key file. Could you please tell where can i find such a file without the need to pay?

Thanks in advance