using System; using System.Collections.Generic; using System.Text; using Autodesk.AutoCAD.DatabaseServices; using Autodesk.AutoCAD.Runtime; using Autodesk.AutoCAD.Geometry; using Autodesk.AutoCAD.ApplicationServices; using Autodesk.AutoCAD.EditorInput; using Autodesk.AutoCAD.Windows; namespace HelloTeamcenter.hello { class MyExtension:Autodesk.AutoCAD.Runtime.IExtensionApplication { public void Initialize() { } public void Terminate() { } } }