If you have ever misplaced a product key for a piece of software that you have legally paid for, than WinKeyFinder may be of assistance to you. The software is a small download and once extracted is easy to use. Just run the WinKeyFinder executable file and up pops your product key. It is that simple. On their web site it states that:
Win keyfinder retrieves your windows Xp, win 2000, windows me, 98, 2003 and .NET Product keys from the registry and display it for you.
Usually the keys are encoded and stored in the registry it decodes it and also allows You to change Windows XP, 2003, and .Net Product Keys just press of a button. It is simple and easy to use.
Windows 7 and Vista users, rejoice, it works with these Windows versions as well.
Comments welcome.
Download WinKeyFinder from here.
Disclaimer: This is for those who have a legal copy of Windows.