Jar Ajar is a JAR-based self-extractor for zip files. Zip up files and package them with descriptive images and text using Jar Ajar's graphical interface. When recipients launch the resulting JAR, Jar Ajar guides users through the unzip process.
The utility sfxcompress is a bash script used to pack and encrypt the current directory on a self-extracting file. It also includes the calculation of the MD5 function to check if the compressed file is correct.