Free CAD program

Hi,

I was wondering if there any free CAD program you can suggest that lets you see the attributes (properties) of objects or lines that are created in autocad other than opening them? I've tried this link on autocad: 

http://www.autodesk.com/products/dwg/viewers

I can open the file but it doesn't let me view/see the attributes.

The files I am viewing contains information on the attributes/properties and I would like to use a free CAD program to view them when I click on the objects/lines.

Thank you.