Run setup.exe to install the game.

The game will run on a trial period and must be activated to continue playing. Reinstall will not work.

=======================How to activate====================

You must replace vgt_diamond.exe from your installation directory with the one inside 'Activation File'

The game will show the activation message after the 3-day trial, but will be functioning as an activated copy. 
Just proceed as if you entered a valid code and it will work. This will be asked each time you open the game.

Enjoy!