When Blue Iris is first installed it is a limited time trial copy. Users can purchase a license from Aartech Canada or Blue Iris directly, to activate the full version of the software. The key Aartech sells is the "Full Version" of the software. As of the time of writing this article, the license key code is valid indefinitely and does not expire. It is good for the same major version for which it was purchased. If you are having any problems with your license code please contact Blue Iris Software directly as it is their registration server that handles this function.
Blue Iris also sells a separate support plan that can be renewed annually but this is separate from the license code and is only for support.
As per Blue Iris: