外部启动CAD

 static void Main(string[] args)
        {
             // 连接至 AutoCAD 应用程序   
            RegistryKey RegK = Registry.LocalMachine;
            RegistryKey software = RegK.OpenSubKey("Software\\Autodesk\\AutoCAD\\R17.1", false);

            if (software == null)
            {
                Console.WriteLine("AutoCAD 2008启动失败!");
                return;
            }
            // 判断注册表文件是否已经存在
            //if (IsReg) 
            //{
                Console.WriteLine("注册表文件已存在,AutoCAD 2008正常启动..");
                //Console.ReadLine();
                System.Type AcadType = System.Type.GetTypeFromProgID("AutoCAD.Application");
                Object acad= System.Activator.CreateInstance(AcadType);
                AcadType.InvokeMember("visible", System.Reflection.BindingFlags.SetProperty, null, acad, new object[] { true });
                Object documents = AcadType.InvokeMember("Documents", System.Reflection.BindingFlags.GetProperty, null, acad, null);
                Object document = documents.GetType().InvokeMember("Add", System.Reflection.BindingFlags.InvokeMethod, null, documents, null);
                //Autodesk.AutoCAD.Interop.AcadApplicationClass ICad = new AcadApplicationClass();
                //ICad.Visible = true;
                //ICad.WindowState =Autodesk.AutoCAD.Interop.
                //return;
            //} 
    }
        // 注册表文件是否存在
        static bool IsReg
        {
            get 
            {
                RegistryKey Key = Registry.LocalMachine.OpenSubKey("Software\\Autodesk\\AutoCAD\\R17.1\\ACAD-6002:804\\Applications\\SmartSoft", false);
                
                if (Key == null)
                    return false;

                Key.Close();
                return true;
            }
        }             
        }