An Update to Security System 1.1. This file includes an Easy Install, Plenty Of readmes to Read, Qbasic.exe, bug fixes and more. This program is one of the best Security Programs out there. Security System can Keep other users from entering your pc when your at work, on vacation or whatever. It has quite a few options too. Its very Small, and its very quick. This program can also be used on MultiuserComputers. This program uses dos, while at the same time, working through windows.