ZwCAD 2006i, best alternative to AutoCAD with native DWG version from 2.5 to 2006. ZwCAD 2006i, more stable with over 200 enhancements, improve your drawing efficiency. ZwCAD can read, save and edit the files produced by AutoCAD (2.5-R14-2006) and the other way round. It's the intelligent choice for architects, engineers, designers, and virtually any professional who creates professional 2D and 3D CAD drawings. ZwCAD can be customized with lisp, C++ (ADS), and VBA (Visual Basic for Application). With over hundreds of bug-fixes, enhancements and unique features added, ZwCAD 2006i is a major step forward in providing CAD users access to advanced technology at affordable price. New Functions: Drawing Recovery and Audit Support export to bmp, dwf, wmf, emf, eps, pdf, svg VBA and VBA manager (VBAMAN) support Wipeout objects and 3D Acis support Microsoft ActiveX support for in-place editing Polar tracking and object snap tracking support Import/Export WMF (Windows metafile format) files support Unlimited undo/redo Proxy objects display and print Quick Select support Multiple-Language Support in Mtext Dimension Trim/Extend support Mline and Mline style support Polygonal viewport and viewport lock support