ZwCAD is a CAD software fully comapatible with AutoCAD.ZwCAD\'s native file format is .DWG, so when you open an existing DWG file there\'s no file conversion and no data loss. ZwCAD also provides a high degree of compatibility with the AutoCAD command set, as well programming API\'s such as AutoLISP and ADS. That means you can get to work immediately using the DWG files, AutoCAD commands and applications you rely on.Here are some key features of \"ZwCAD Standard\":