How do I set environment variables for a portable app that already exists?
I can't use launcher.ini because that is only for making a NEW portable app, not configuring an existing one. I've already tried creating a BAT file contains the environment variable setting command in one line like "set PATH=%PATH%;C:\MyPath", and then executes the portable app launcher in next line like "FirefoxPortable.exe". Unfortunately it seems that environment variables set in a BAT file, do not get passed from the portable app launcher to the actual app's EXE file (in this case firefox.exe).