The new Dimension Pro installer is wacked if you're not installing in the default location.
Won't let you specify where the Multisamples are stored - tries to outsmart you and screws it up royal.
Won't let put it in ...\DimensionProData\Multisamples
insists on either ...\DimensionProDataMultisamples
or ...\DimensionProData\MultisamplesMultisamples
Should have skipped this update.