AXCAD 6.4

Develop projects in the Autocad 2006 DWG format (from r2.6 to 2006) and operate using native files with a higher degree of stability and integrity. The suite also supports LISP and ADS development. Regular updates are available. Backup creation is optional.

Axcad is a 100% DWG compatible and AutoCAD command compatible CAD is another affordable choice for AutoCAD users.
100% DWG compatible, using DWG as native file format. You won't lose any dwg files to use this affordable CAD. Supports AutoCAD 2006 dwg format (from r2.6~2006)
High degree of AutoCAD command set compatible. You won't spend much time on learning AXCAD.

Supports LISP and ADS development.