DWGTrueView is a very powerful tool that can open all CAD draft that produced by Autodesk AutoCAD. it support the newest edtion of AutoCAD. and It is a freeware.

as powerful it is, it was a heavy software, the computer should have microsoft .net framework installed before install it. and it was 200M in size.

the purpose of publish this software is autodesk tries to replace voloview by DWGTrueView.

but aftere install this software in the company, many designer complans the computer became slow than usual. so that it was not a good idea to install it if the client never need to open CAD draft.
another problem is this software can only be asigned to a computer rather than publish to users in the Active Directory.

Minimum Operating Requirements
Microsoft® Windows® XP Home and Professional SP1 or SP2, Windows 2000 SP4
Microsoft® Internet Explorer 6
Intel® Pentium® III PC, 800 MHz or higher
512 MB RAM (recommended)
400 MB free disk space for installation
1024 x 768 VGA with True Color (minimum)

DWGTrueView download:
http://www.autodesk.com/dwgtrueview-download