After Orca3D has been installed, it will initially run in Evaluation mode, giving you 15 days to try the software before you decide to purchase. Each time Rhino is started, the Orca3D plug-in is loaded, and it checks for a valid license.
If a license is found, nothing is displayed and you will be ready to work in Rhino. Note that you can check the status of your Orca3D license by selecting About in the Orca3D menu.
If you are still in your 15-day evaluation period, you will see a screen showing the number of days remaining in the evaluation period, and asking if you want to continue the evaluation or activate the software.

To activate Orca3D, you must purchase a license, at which point you will receive a "License Code"(sometimes called a "License Number"). You can activate the software either by clicking on "Yes" in the dialog above, or by clicking on the Windows START button and navigating to the Orca3D folder, then clicking on the License Manager Utility. The License Manager Utility may also be started from the Orca menu, but note that any changes made to your license will not be effective until you close and re-start Rhino.
There are four methods that you may use to activate your license:
1. Automatic Activation via the Internet: This is the easiest and most common method. Use this method when you are activating the software from the same computer on which the software is installed, the computer is connected to the Internet, and you don't have a proxy server or firewall that would prevent this from working.
2. Automatic Activation with a Proxy Server: If you have a Proxy Server, you will use this method. You may require assistance from your IT department.
3. Manual Activation using the Internet: If the computer on which Orca3D is installed is not connected to the Internet, or has a firewall that prevents the activation from being completed, you can log into a special website that will provide an unlocking code.
4. Manual Activation using Email/Phone: This method is similar to the previous one, except that after you provide your information to us via phone or email, and we provide the unlocking code.