The 'UltraCool' joke is a standalone application. When executed it
first asks to enter first and last names of a user. Then it outputs
the following message:
This application stopped responding to the computer.
A LOW level Hard Disk format will procede in
27 seconds if cancel button in not pressed
WARNING: THIS WILL DELETE ALL INFORMATION
STORED ON YOUR HARD DRIVE
This dialog has a 'Cancel' button. After that the countdown starts.
The 'Cancel' button can't be clicked because it moves away when mouse
cursor appears near it. When the counter reaches zero the screen goes
blank for a second and then the joke shows a message in big letters
'Just Kidding...'. Shortly after that there appears 'Done' button.
After this button is clicked the joke passes control to the system.