it look like the path to the dll is wrong - Have you by any chance moved files/ folder but not updated your VST-path in settings?
Try this
Open a new VST-instrument from myInstruments
point to the green folder icon and browse to a VST-dll on disk
Does that load?
Is it win7 or 8?
Try this
Open a new VST-instrument from myInstruments
point to the green folder icon and browse to a VST-dll on disk
Does that load?
Is it win7 or 8?