ProduKey : Recover lost Windows product key and Office 2003/2007/2010 product key
Using ProduKey
ProduKey doesn't requite any installation process or additional DLLs. In order to start using it, just run the executable file - produkey.exe
The main window of ProduKey displays the list of Windows, Office, and SQL Server products installed on your system. For each product, the "Product ID" and "Product Key" are displayed.