1)   progeCAD 2006 Professional 8.0.18
ProgeCAD IntelliCAD natively reads and writes AutoCAD DWG files, no need for conversion! Industry standard AutoCAD Commands. AutoCAD Menu, Script, Font Compatibility, AutoLISP Compatibility! Advanced Rendering Options, 3D ACIS Solid Modeling.
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 2)   progeCAD Smart IntelliCAD 8.0.18
progeCAD 2008 Smart!, powered by the most recent IntelliCAD engine, is derived directly from the professional versions of progeCAD, and maintains all the base functionality of its outstanding parents in a set of installation that is compact.
progeCAD, IntelliCAD, AutoCAD, Cadopia, CMS IntelliCAD, zwcad, bricscad, solidworks, ptc, drafting,

 3)   GStarICAD 2007-11-1
GStarICAD is the geniune CAD drawing software based on IntelliCAD,and it is 99% idential to AutoCAD but with a competitive price.GStarICAD offers a 30days free tryout after free download this software
solidworks, autocad, IntelliCAD, Progecad, turbocad, cadopia, zwcad, autodsys, Cadian, BricsCAD,

 4)   GStarICAD Std 2007-11-1
GStarICAD is the geniune CAD drawing software based on IntelliCAD,and it is 99% idential to AutoCAD but with a competitive price.GStarICAD offers a 30days free tryout after free download this software
solidworks, autocad, IntelliCAD, Progecad, Turbocad, cadopia, zwcad, autodsys, cadian, Bricscad,