Amethyst CADwizzSave
CAD viewer, that views AutoCAD DWG and DXF, files. Save files in any version of AutoCAD, zoom, pan, rotate, and print your drawings, display 3D views; modify layer color and visibility settings. Time-limited trial. http://www.cadwizz.com/
Dr. DWG LiteviewSave
Stand-alone CAD viewer for AutoCAD as well as fifty plus raster file formats. Offering features for viewing, drawing manipulation, redlining, printing, and comparison. [Windows 95/98/NT/ME/XP/2000] http://www.drdwg.com/liteview/index.html