You're welcome. I'm glad you got the problem solved, and thanks for posting to describe the solution. So often we never learn how things turned out.
I'm a little surprised that the DLL existed, but had some issues, since the error code (75:11) should mean that the DLL file wasn't found. Maybe the programmers didn't distinguish between 'does not exist' and 'is not a valid dll file'. If that is the case, it is a bit of a shame that they didn't provide more precise error reporting. A misleading error message can be very confusing.