Are you trying to for hardware you already own, or are you looking for compatible software to start a digitizing project?
Since the product is no longer actively sold or supported, users often turn to third-party forums or "key generator" sites to make their hardware functional again. Risks and Legalities
Because 4.0 was designed for older operating systems like Windows XP or 7, it often struggles with on Windows 10 or 11. Instead of hunting for a legacy key, many users find it more efficient to use free, open-source software like OBS Studio or VLC Media Player , which can often recognize the honestech hardware without needing a proprietary product key.