progeCAD allows users to work with AutoCAD DWG files.
EditByBSEditor: progeCAD AutoCAD DWG Clone, 1/10th the cost, no need for conversion! No learning curve for AutoCAD users, Industry standard AutoCAD Commands. AutoCAD Menu, Script, Font Compatibility, AutoLISP Compatibility! progeCAD 2008 Standard is an easy replacement for AutoCAD and AutoCAD LT! AutoCAD DWG File 2.5 - 2009 Open and Save Compatible with AutoCAD menus, scripts, fonts, etc. Compatible with AutoLISP, ADS and COM. progeCAD IntelliCAD Standard is an easy replacement for AutoCAD LT and Autosketch.

* An AutoCAD Clone that works with AutoCAD DWG files, from AutoCAD 2.5 through AutoCAD 2009!
* A user interface complete with AutoCAD Like icon menus and AutoCAD Like commands.
* Support for every important AutoCAD file type including DWG, DXF, AutoCAD menus, AutoCAD scripts, AutoCAD AutoLISP, SHX AutoCAD Shape fonts, Color Tables for plotting, Plotter Configuration Parameter files, AutoCAD Styles based Plot Tables, AutoCAD Hatch Patterns, AutoCAD Linetypes, etc. you can free download progeCAD 2009 Standard 10.0.12.4 now.