Go to the official purchase page of Extreme Gammon.
Click "Activate." The software will verify the key over the internet and unlock the full suite of eXtreme Gammon tools. Managing Your Activations: Upgrades and New Computers Extreme Gammon Activation Key
: A standard commercial purchase typically allows you to activate the software on up to two distinct computers that you personally own (e.g., a desktop and a laptop). Go to the official purchase page of Extreme Gammon
If you want to use XG on a second machine (e.g., a laptop and a desktop), you can purchase additional activations at a discounted price of $30.00 each . a laptop and a desktop)