This program will run under Windows, OSX, and Linux. However, you must have a Java run-time environment installed. The process of obtaining the JRE varies with operating system. To install the program, simply download the executable (jar file) and manual below (visible if you have registered) and place them in the same folder on your computer. The manual and jar file must reside in the same folder on your machine. Then, to run the program, simple double-click on the jar file (in Windows, this varies with operating system as well).