ZWCAD 2010 is cost-effective & powerful CAD software for 2D and 3D design. With ZWCAD 2010, you are assured of: unrivaled compatibility with AutoCAD® (from version 2.5 to version 2011) & Windows® Operating Systems, efficient drafting features (2D & 3D drawing, editing, dimensioning, etc.), advanced management features (design center, tool palettes, aerial view, etc.) and powerful application programming interfaces (LISP, VBA, SDS and ZRX) .