Ok, guys. Here's a chat log where I described how to set your Internet Explorer and Windows Media Player to get the RTL stream
<Satorian> do the following:
<Satorian> go to your internet explorer settings -> connection -> proxy settings
<Satorian> proxy: 217.195.246.83
<Satorian> port: 8080
<Satorian> click OK, close the dialog, close IE
<Satorian> then open windows media player
<Satorian> tools -> options...
<Satorian> then, 'network'
<Satorian> under streaming proxy settings enter the same proxy as above for all services. close dialogue. close WMP.
<Satorian> then go to
http://www.rtl.nl/sport/rtl_gp/rtlgp/
<Satorian> click on "RTL GP livestream"
<Satorian> a new window opens, containing the player window and RTL content
<Satorian> then it will request the DRM license, showing a pop up
<Satorian> click ok/accept
<Satorian> it will get the license from the geolocation service
<Satorian> this is now done through the dutch proxy you have entered in IE and WMP
<Satorian> once it has done so and you can play the stream (or shows it loading), you should revert your proxy settings to the way they were before
<Satorian> now you can also open
http://www.rtl.nl/(channel=service,p...nt.xml/800.wvx in a dedicated WMP instance