My VB 6 API viewer doesn't want to start as an add-in anymore.
As soon as I select it from the available add-ins, click loaded/unloaded and OK, I get the message: 'VB 6 API viewer' could not be loaded. Remove it from the list of available Add-Ins?

It used to work ok, I don't know what caused the error. I can start it manually but I would like to start it as Add-In.
I already tried unregistering and registering apiload.exe, but this did not solve the problem.

Any ideas?