GStarCAD 2009 Professional - Version 090422 GStarCAD is based on the well-known IntelliCAD software which is the industry standard for low-cost CAD software. GStarCAD 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. GStarCAD is the top quality version of IntelliCAD worldwide, 99% identical to AutoCAD and its speeds and performances with an attractive and competitive price are totally unbeatable.Unrivaled AutoCAD compatibilityGStarCAD's native file format is .DWG, so when you open an existing Autodesk AutoCAD file (2.5 to 2009), there's no file conversion and no data loss. GStarCAD also provides a full compatibility with AutoCAD Command Line, menu (.MNU) and script (.SCR) files, hatches, fonts and true type fonts-Complex linetypes, Multiline Text, Lightweight polyline, Draw commands, Audit & Recover as well as AutoLISP and ADS. That means you can start to work immediately using the AutoCAD files, commands and applications you rely on.