I own a genuine ross tech key-usb interface and correct me if im wrong,but it should automatically activate the vag com software?.I have tried it with four different versions of vag com,but to no avail.I have done the test proceedure and i get "ports ok"-" interface found". When i try to run the program (interface connected-ignition on),i get a error saying "not plugged into car" and im referred back to the test proceedure. On investigation,i notice there is no licence number, i.e, not activated. I have had no problems with it in 18 months prior to this.. 2 full days now trying to sort it out and almost ready to bin it,unless someone can gratefully assist me....Many thanks for any helpfull replies. P.S. Drivers are installed ok.