If you receive an error message that your serial number is unknown, there can be different reasons for this:
- Make sure that the serial number is typed in correctly.
- KONTAKT libraries from other manufacturers than NI (so-called 'OEM' or 'third-party' libraries), that only run in the full version of KONTAKT, don't have to be registered with NI. The registration process as well as the download is handled by the manufacturer. In case you have a problem with the registration or download, please contact the manufacturer.