Thank you OCS Foundation. Your solution was correct in my case too.
I was using IE10 and IE11 when the error message appears.
I have just successfully used Firefox to add an additional plugin category.
I will put in some time to try and find the setting in IE that was preventing the addition of more plugin category associations.
– Darrell Webster
Hi Allen and OCS Foundation CTO
I’m having the same problem to. You have marked this thread as resolved. Would you be able to post and share the resolution?
Thanks
– Darrell Webster
