Amethyst CADwizz
   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/

CNC CAD CAM Package
   Graphic oriented programming that produces G-codes. Complete documentation and support. [DOS/ Windows]
   http://www.northlandmultisoft.com/

Dr. DWG Liteview
   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

House Floor Plans Design Software
   Allows you to create house floor plans without knowing complex math.
   http://www.blackmtnsoft.com

Internet Model Optimizer
   Optimizes complex 3D models, which originate from CAD/CAM/CAE systems and other sources, for use on the Internet. [Win95/98/Me/NT/2000]
   http://www.parallelgraphics.com/products/imo

ViewCompanion
   Application for viewing and printing HPGL and HPGL/2 files, generated by your CAD program, or plotter driver. It can also convert files to many other standard formats.
   http://www.softwarecompanions.com/viewcomp.html