If you are unable to recover your key and don't want to purchase a new license, consider using free, open-source alternatives that work with most capture cards:

To handle modern video codecs and Windows/macOS updates, the software needs official patches that unauthorized versions cannot access. How to Find Your Original Product Key

You can contact VIDBOX support through their official website. If you can provide proof of purchase (an invoice or receipt), they are usually able to reissue a digital key.

Searching for direct download links to product keys or "cracked" versions of the software often leads to several risks: