I did all you said and the error is still there.
I told you already that I did a search for any ..PRO components. I deleted them yesterday, but none of them were .dll files.
Copying dll files to another location can't harm the system. I do that all the time, getting all .dll's for music making in one place. It is very common and I never encountered any problems since 2006 when I started with computer aided composing. This would be the first time ever. Isn't there a chance that your installation program of Vienna Instruments, which also installs Vienna Ensemble secretely installs Ensemble PRO but blocking it due to not having a license for it?
The only thing I want is a 32-bits version of Vienna Ensemble (not PRO) in Overture and somehow your company cannot deliver it. Pity.
Raymond