The .NET Framework is a language-neutral programming environment developed by Microsoft. In addition to the run-time environment, the Framework provides class libraries that facilitate development of Windows- and Web-based applications that are interoperable and secure.
AutoCAD supports .NET application development with ObjectARX managed wrapper classes. See the “AutoCAD Managed Class Reference” and the “ObjectARX Managed Wrapper Classes” sections of the ObjectARX Developer's Guide, both in the ObjectARX SDK, for a complete list of the managed wrapper classes that are available. For more information about the .NET Framework, see the Microsoft documentation.
Managed wrapper classes are provided for most of the ObjectARX SDK, enabling you to write applications in any language that is supported by the .NET Framework, including VB .NET and C#. The managed classes implement database functionality and enable you to write applications that read and write drawing format (DWG) files. They also provide access to AutoCAD user interface elements, including the command prompt and feature dialog boxes, the AutoCAD editor, and the publishing and plotting components.