To be able to view DXF or DWG type files you no longer need to install AutoCAD. With DWG True View you have a powerful and very complete graphic viewer of these formats that work with AutoCAD.
From the DWG True View interface you can view the graphics you load, zoom in on them to see more clearly and detailed (and you will hardly lose quality as you do so), see them from distinct perspectives, frame them, etc.
DWG True View also comes equipped with tools that offer you diverse printing options. It also includes utilities to publish them on the Internet, view 3D graphics, move about the maps, etc.
For DWG True View to work correctly you need to have Internet Explorer 7.0 or later.