Product activation

Product activation is the process through which a product (usually computer software) is activated. Specifically, product activation refers to a method where a software application hashes the serial numbers on a computer and an ID number specific to the license (a Product Key) to generate a unique activation ID. The activation ID, along with the product key, is sent to the manufacturer to verify the authenticity of the product key and determine that the product key is not being used for multiple installations.

Microsoft's Product Activation has become a subject of debate, primarily because it was one of the first widespread uses of a product activation sytem.

Software that require users to activate online or by phone include:

• Microsoft Windows XP
• Microsoft Windows Server 2003
• Microsoft Office (XP and 2003)
• Adobe Photoshop
• Norton Antivirus
• Intuit TurboTax (product activation was subsequently discontinued after complaints over its activation process)
• Quicken (depending on country/edition)
• DivX Pro

Although many product activation schemes are anonymous, some are accompanied by mandatory product registration which require you to provide your address, phone number, and other personal information before the product is activated.

See also: Digital rights management