To download GUI click here. The IRT graphical interface is universal and works with all our products. File Name: gui-4.13.jar Version: 4.13 Release date:: Oct 22 2025 12:58:56 JAR file size: 29022 kilobytes To run the JAR file, install Java on your computer if it is not already installed. The old version of the GUI does not work with Java 8 version 451 and higher.