OpenJazz
Installing OpenJazz for Windows
You will need two things:
  1. An existing installation of a 1994/1995 Jazz Jackrabbit game:
    • Jazz Jackrabbit
    • Jazz Jackrabbit Christmas Edition
    • Jazz Jackrabbit Holiday Hare
    • Jazz Jackrabbit Shareware Edition
  2. OpenJazz for Windows - see the download section.
The OpenJazz files (OpenJazz.exe and OpenJazz.000) must be in the same folder as each other. You can place them in your Jazz Jackrabbit™ folder, and OpenJazz will be ready to run. You can also place them elsewhere if you use your Jazz Jackrabbit™ folder as a command-line option (e.g. by dragging and dropping it onto OpenJazz.exe).