First of all it's necessary to extract binary files into any directory. On the machine must be installed Java Runtime Environment (JRE) version 1.5.0 or later. Application may work on earlier version of JRE. It's recommended to add to envinronment variable JRE bin directory. Next it's necessary to execute Interpreter program. Result of the Interpreter is executing code of program. Interpreter contains Scanner, Parser and Linker in one. java interpreter file_name, where file_name is path to the file which contains code of program, example: code.txt, c:\stud\program.txt etc. To program test it's added three files contain example code of language which it's defined in BNF document.