GStarICAD is based on the well.known IntelliCAD software which is the industry standard for low.cost CAD software. GStarICAD is the innovative alternative to AutoCAD that provides OpenDWG file compatibility, similar environment, as well as full support for AutoCAD commands, menus, scripts, styles, patterns etc. Support AutoCAD R2.5 to 2007. GStarICAD 2007 Standard is the perfect CAD tool for 2D drawing. It is adequate if your needs are limited to basic Draw, Modify, dimension and print. It also can be customized with LISP, ADS(C++) and allow users to develop third party applications.