Autodesk.inventor.interop.dll

Type invAppType = Type.GetTypeFromProgID("Inventor.Application"); dynamic inventorApp = Activator.CreateInstance(invAppType); inventorApp.Visible = true;

: To ensure an add-in works across multiple versions of Inventor, developers often reference the oldest version of the DLL they intend to support [5.15, 5.32]. For instance, a plug-in built with the 2017 interop library will typically still run in Inventor 2026 [5.15]. autodesk.inventor.interop.dll

When a developer references this DLL in a project, they gain access to the entire hierarchical object model of Inventor. This includes: Application Control: Type invAppType = Type