Introduction - If you have any usage issues, please Google them yourself
This code completely locks your computer when you press a shortcut. There is no way to get back without entering the password! It blocks all keys, like Ctrl+Alt+Del, Alt+Tab etc by creating a new desktop. The password gets encrypted in MD5. It also has a nice XP Skin, a logger option and an option to shut the system down after x times of entering a wrong password.