32bit and 64bit.

The company offers a variety of Adobe software in the graphics and media company known for Autodesk also known as a manufacturer of engineering design applications and simulation. One of the programs is the software company Autodesk AutoCAD is the main program and the standard of design and planning. Perhaps the most widely used AutoCAD software, various engineering disciplines from which to draw maps and plans for construction, industrial, etc. are used.

http://www.autodesk.com/products/autocad/overview