orikoren12

_Does it happen even if you make a very simple add-in (just a single function)?_ Ori > we can try this. _What version of Excel-DNA and .NET are you using?_...

Hi @govert Thanks for you advices ! We have some progress We got this window in debug mode:  After modifying the name of the of the class which implements...

@govert Thanks for you feedback and your advice, I've tried very simple addin and the issue is still there. I'm contacting the other addin vendor to see if they will...