Unloading a pluggin

So I loaded up a pluggin that is on version 1. It did not load completely and I want to remove it. So I looked in the >properties >pluggins and can not find it listed. It just gives me an annoying “error loading pluggin - name of pluggin” every time I start rhino. Where to uninstall?

Hello - find the rhp file that is trying to load and delete it. But if it is trying to load, it must show up in the plug-ins page, I’d think, even if not loaded.