All ORB files have an “Embedded Launcher”
The “Embedded Launcher” is included with every ORB and it works without any special software installed on the target system.
The Embedded Launcher is an ELF executable, embedded in the ISO header.
When the user tries to execute an .orb file directly, the system will recognize the executable and run it. The executable will then mount the ISO and run the autorun inside, which launches the App inside the ISO.