D2nc has a built in 15 day trial key that activates when the program is first used. The trial period should allow sufficient time to determine if the program is useful to you. If the trial expires and you feel you need extra time to evaluate it, contact support@d2nc.com and request a trial key extension. These will be provided on a case by case basis.
When the trial period expires, you may still use the program to define shapes but the "Show G-Code" and "Generate G-Code to File" buttons will cease to work.
Visit www.d2nc.com to purchase a license key. The key will be emailed to you shortly after payment is received.
Select the menu Option->License
Enter the Name and Key as provided to you in the email
Confirm your registration by viewing the Help->About screen