
The three files can help to zip and unzip files and zip folders as well. You can practise to use it by using sample files in a folder. You can install the 7-zip if you have it missing in your profile, you can install it using the folder of 7-zip installation software or you can copy the 7-zip folder in to the C:\Program files path.

Anyway, the script will give you option to help you install it if possible
