I have found the main file checks to see if you have the necessary plugins for the program. I bypassed mine with my own index file and copied the cd's onto the hard disk.
works great now.
It oo had issues with it reading the discs at first, and running them, until I bypassed the first page and loaded the one that starts the manual itself to choose the car.
Let me know if you want me to send you the file and instructions on how to copy ti to your hard disk and use it.
'92 300CE - Sold
2004 C240 - C7 Wheels
2015 ML350 - P1, Pano, Ash poplar wood, Sport Dinamica interior, Running Boards Keyless go.