Use your Flash drive to play online games?

Are you aware that you can play online games using your flash drive or any external hard disk? yes its true and its proven. Currently I’m playing Tantra and Warrock Philippines. What I did fist is to use the installer of the game. Install it in your computer, once installed just copy the entire game folder (e.g) d:\games\warrock into your usb flash drive.

Then just run the .exe icon of the game and enjoy