To register Helpinator Professional:
1. Follow this link to buy product:
http://www.helpinator.com/order.html
2. Wait for the email with your registration code.
3. Select Main Menu->Help->About
4. Click "Register".
5. Enter registration information exactly as it is in the registration confirmation email.
As a registered user you are eligible to:
1. One-year free updates (even major version updates).
2. Priority ticket support.
3. Partner discounts
See complete list of benefits here: