Validation differs from activation; while pairs your product key with your hardware, validation is an ongoing process that checks if critical licensing files have been tampered with or removed.
An installable update that hooks into the system login process to validate your license every time you log on. ActiveX Controls: windows 7 validation tool
Disclaimer: This post is for educational and historical purposes. Always use legitimate software and keep your operating systems up to date. Validation differs from activation; while pairs your product