I can't get the DesignLab 1.0.4 to work, I get the Launch4j error after seeing the splash screen. The arduino_debug output shows it to be this java/arduino error: https://github.com/arduino/Arduino/issues/2691 Which appears to be fixed via bunding a newer version of java in arduino, as of 19 days ago. Any possibility you can merge in those changes? It seems to affect people using VMWare, which are probably a lot of your users