_IDTExtensibility2, what DLL to import into ATL project?

Question

So I'm trying to solve my Office add-in task again; I have created the ATL project, added simple class, and now want to add interface implementation, as http://www.devarticles.com/c/a/Cplusplus/Writing-an-MS-Word-Addin/1/ proposes;

However, available type libraries list has no listed Extensibility to add; I checked under Program Files, but the Extensibility.dll found there was a .NET assembly without exposed COM classes.

Answer 1

Type library is {AC0714F2-3D04-11D1-AE7D-00A0C90F26F4}, named "Microsoft Add-In Designer" hosted by probably MSADDNDR.DLL.

// typelib filename: MSADDNDR.DLL

[
  uuid(AC0714F2-3D04-11D1-AE7D-00A0C90F26F4),
  version(1.0),
  helpstring("Microsoft Add-In Designer")
]