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.
Certain versions of Windows and Office are available under a volume license, where a single product key is used for multiple installations. Programs purchased under this license must still be activated, with the exception of Windows XP and all versions of Office released prior to Office 2010.