I downloaded the launch.php from
https://github.com/MOTTechnologies/2stepscript and had errors running it, php has moved on since it was created so these things are expected i guess.
I've updated the launch.php script and removed errors that were occuring due to "Deprecated: Array and string offset access syntax with curly braces is deprecated"
It also errors when you don't specify the ecu.bin and dump.ecu files as parameters, but as long as you run it as "php launch.php ecu.bin dump.ecu" it fine. if someone wants to fix that bit that would be great.