Autodesk, the developer of AutoCAD LT, requires users to activate their software with a valid license key. This key is usually provided with the purchase of the software or can be obtained through authorized resellers.

AutoCAD LT 2007 is a 2D drafting software that was widely used by architects, engineers, and designers for creating and editing 2D drawings. Released in 2006, it was a popular choice for users who required a more streamlined and cost-effective solution for their drafting needs.