The developer asks users to consider registering (with a small donation) to support ongoing development. Registering removes the occasional reminder screen but doesn't add features.
If you're looking for a legitimate blog post on this topic, here's an outline I could write: irfanview registration code
need a registration code or license if you are using IrfanView at home for personal, non-commercial purposes, or for educational use in schools/universities. Commercial Registration The developer asks users to consider registering (with
If you are a home user, you a registration code—just enjoy the software! If you are using it for work, the honest path is to send a small payment to the developer to receive your official code. Commercial Registration If you are a home user,
Since no valid registration code exists to unlock features, any code you find will either:
IrfanView is free for use. For commercial use (for-profit companies, government agencies, etc.), the author requests a registration/donation as well. However, even in a corporate environment, the software does not enforce a lockout. It is an honor system.