Technically, this file is a . Because Autodesk Inventor is built using COM technology, modern .NET languages like C# or VB.NET cannot communicate with it directly. The Autodesk.Inventor.Interop.dll contains the definitions of all Inventor classes, interfaces, and methods in a format that the .NET compiler can understand. Key Functions of the Interop Assembly
inventorApp = new Application(); inventorApp.Visible = true; autodesk.inventor.interop.dll
If your add-in must support Inventor 2022, 2023, and 2024, do reference a single autodesk.inventor.interop.dll . Instead: Technically, this file is a