ProduKey is a small utility that displays the ProductID and the CD-Key
of Microsoft Office (Microsoft Office 2003, Microsoft Office 2007),
Windows (Including Windows 7 and Windows Vista), Exchange Server, and
SQL Server installed on your computer.
You can view this information for your current running operating
system, or for another
operating system/computer – by using command-line options. This utility
can be useful if you lost the product key of your Windows/Office, and
you want
to reinstall it on your computer.