Delisle (surname) topic. Delisle or De Lisle may refer to: Alexandre-Maurice Delisle (1810â1880), Canadian businessman, political figure Arthur Delisle (1859â1936), Canadian political figure, author Charles-Marie-RenÃ© Leconte de Lisle (1818â1894), French poet of the Parnassian movement Claude Delisle (1644â1720), French cartographer and royal censor, father of Guillaume (q.v.) Claude Joseph Rouget de Lisle (1760â1836), author of La Marseillaise, the French national anthem Dan ...
Product key. Product key on a Proof of License Certificate of Authenticity for Windows Vista Home Premium. A product key, also known as a software key, is a specific software-based key for a computer program. It certifies that the copy of the program is original. Activation is sometimes done offline by entering the key, or with software like Windows 8.1, online activation is required to prevent multiple people using the same key.
Each copy of the Windows operating system comes with a product identification license key. The key is sent to Microsoft when the computer searches for the latest update. Only valid license keys can update the operating system. The product identification number is shown in the Windows System window. You can open this window from the Control Panel, and you need this key when calling Microsoft for technical support. Click the Windows Start button on your computer. Click Control Panel to open the main utility window.