BIL24 desktop applications implemented in Java™, so they run on Windows, Mac OS, Linux, UNIX and VMS.
Java Runtime Environment (JRE) is required to run Java applications. It is freely available for download at the oracle.com. If JRE is installed, jar files execute by double clicking.
If you doubleclick on a jar file, and your Java application does not start, your .jar association has been hijacked. You can fix the problem with Jarfix.
BIL24 mobile applications:
Tickets 24 (Android).