First you need to purchase a license key. You will have the key delivered to you by
email directly after the purchase. You can make the purchase here.
Start CoordTrans. If your trial period has expired you will have the dialog below
displayed to you.
If your trial period has not expired, select File->Enter License Key
from the CoordTrans menu.
Cut'n paste your email address and the license key you received by email after your
purchase. Then press OK.
License key is now installed! If you have purchased a site license repeat step 2 and 3
on each user's computer that should use CoordTrans.