Different versions of the 2013 software require specific keys for successful activation: 001E1 AutoCAD LT 2013: 057E1 AutoCAD Architecture 2013: 185E1 AutoCAD Mechanical 2013: 206E1 AutoCAD Electrical 2013: 225E1 AutoCAD Civil 3D 2013: 237E1 AutoCAD for Mac 2013: 777E1 How to Find Your Product Key and Serial Number

To activate the software, you must use a combination of a serial number and a specific product key. While the software remains the same, the key you enter tells the installer which license type to apply. : 001E1 . AutoCAD Architecture 2013 Key : 185E1 . AutoCAD Design Suite Ultimate 2013 Key : 781E1 . AutoCAD for Mac 2013 Key : 777E1 . How the Key Impacts Installation