It was a pain in the butt to be honest, however I've not had the oejb error again since deleting that .DLL so fingers crossed. Mind due
It would have been easier if I'd have had a slightly older backup image of C:\ .
The ones I have are so recent that they probably contain the same error so I'll have to do them again. Obviously I'll wait until the system is
error free for a while first. I'll probably scan it with a few different tools first too before creating more images.
Already run Avira, Housecall & Malwarebytes again separately which show up nothing