Hi,

Has anyone done this recently? And if so, could you please give me some tips to get started? I just installed the latest Visual Studio Community Edition (2026), and the API help file for creating PDM add ins in C++ is woefully out of date, to the point that the instructions just don't work.

Trying to follow the instructions in the API help file, I have gotten to step 2.9: Implement Interface, selecting the Edm.tlb. I did that successfully, found the library and imported it, managed to select IEdmAddIn5 as the correct interface, but from there I can't compile anything as I get errors about not being able to open Edm.tlh.

Googling all of this has not lead me in any useful directions, so I come here. Is 2026 capable of this at all?