we just upgraded one of our computers to windows 10 from 7 as a test, we are still using epdm 2015 sp5.

the upgrade seemed to go fine but it is having an issue with class not registered on a custom add-in that i created, the addin however seems to not be causing an error on a windows 10 laptop that we have.

here is the error that we get.

any help on this would be appreciated. sorry for the poor quality image.