Short description of Atomicrobot Plain Simple Zip 4.5: Fast easy simple zip/unzip program! Wow! Makes self-extracting zip files too! Completely re-written on the inside, Atomicrobot Plain Simple Zip is possibly the easiest to use zip program in the world! The program makes self extracting zip files that can display a custom message, execute a program after unzipping, and indicates the files it is decompressing as it proceeds. It can also zip up a folder and all its subdirectories with ease!