If you've lost your product key, this can very difficult to recover if you will just look for it at your registry.

WinGuggle is a small application that can get your Windows Vista Product Key easily. No Installation is needed, Just unzip the archive and launch the application.

Features:
Get Windows Vista Product Key (CD Key)
Change OEM Logo and Information
Change Performance Information and Tools OEM Logo

Features:
*Now OEM Settings Customization is 100% Windows XP Compatible
*Automatic and Manual Backup of OEM Logo and Information
*Reset to default Button to restore the settings