Since it's mentioned as portable, you should be able to run it directly from a USB drive or similar portable storage device without installation.

The files could be kept on a thumb drive (pendrive) and played on any computer without leaving a trace in the browser history—a key feature for the target demographic at the time. ⚠️ Modern Risks and Technical Hurdles

In software terms, "portable" refers to a program designed to run without being installed on a host computer. It doesn’t modify the system registry and can be launched directly from a USB drive or a cloud folder.