If you turn on this option, ProduKey will extract the last 5 characters of the product key from SoftwareLicensingProduct class, using WMI.
Microsoft Windows 7 (Doesn't work with Microsoft Volume Licensing).This utility can be useful if you lost the product key of your Windows/Office, and you want to reinstall it 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.