Arden2ByteCode is a Java program, thus it requires a Java Runtime Environment (JRE) on your machine. If you already have such a JRE, you can proceed with step 2.
Point your browser to the Java Download site: http://java.com/download
Download the installation package and follow the setup instructions.
Java should be installed now.
Go to the releases page.
Download the most recent binary package either as .zip-file for Windows or as .tar.gz-file for Linux and MacOS.
Extract the downloaded binary package to a directory of your choice.
cmd in the start menu and hit enter
ctrl + alt + t or find it in the menu
Change to the directory you extracted the files to:
arden2bytecode -? (Windows) or
./arden2bytecode -? (Linux, MacOS) to display the options of the Arden2ByteCode compiler.