Using the Java-based installer To find out which Java virtual machine is best for running jEdit on OS/2, see the compatibility page. To install jEdit, open a command prompt and enter the following commands: cd directory where you downloaded the JAR file java -jar filename.jar For example, if you downloaded jedit40install.jar into C:\Downloads, you would enter: cd C:\Downloads java -jar jedit40install.jar If for whatever reason you want to start the installer in text-only mode, specify text as the last parameter on the command line. In text only mode, the installer will not display it's GUI, and instead it will ask questions from the command prompt. To start jEdit, run the jedit.cmd script, which will be installed in the same directory as jEdit.