To do it, the program scans your system in search of installed and registered software, and then shows you all of the keys you've used in list form. Recover Keys now supports over 730 different software products, including Microsoft Office, Photoshop, Nero, Alcohol 120%, and many more. It even includes games, like Age of Empires, Counter Strike, and Pro Evolution Soccer.
You can scan your own computer as well as any other connected to the same network, meaning that you could use the program for a business as well.
Lastly, Recover Keys gives you the possibility to export the list of keys generated as an HTML or plain text file.
The demo version will only show the first four characters of the licenses that it finds.