Step 7: click the 'start' again, then click 'No' in the new window and open the file. Pls check the email we sent with the file of activation. Don't worried! It is just still not activated. Step 6: The operation will failed after you click 'start'. Step 5: pls click 'Yes' when you are ready to activation. Step 3: you need to activate it before using the software, and we will provide you with an email address, please send the file 'FileActivation.xml' to us, and we will help you activate it for free immediately. Step 2: run main.exe in '2018.R0 Cars' to activate(if you want to install truck, please run main.exe in '2018.R0 Trucks') Step 1: copy '2018.R0 Cars ' or '2018.R0 Trucks' to your computer With TRUCKS software package, you are able to perform brand specific diagnostics for light and heavy commercial vehicles, buses and trailers from 1995 onwards. With CARS, you are able to perform brand specific diagnostics for cars and light vans from 1988 onwards. How to Install & Activate DS150E 2018.R0 Software?