CADEditorX: ActiveX DWG/DXF, STP, PLT 14 screenshot The ActiveX library allows integrating CAD features in such environments as .NET, HTML / JavaScript, VC++, Delphi, C++Builder, etc. It supports a large number of formats including AutoCAD DWG/DXF, HPGL, IGS, STP, STL, PDF, SVG, CGM. Download CADEditorX: ActiveX DWG/DXF, STP, PLT 14