There's an official 16.8.1 coming soon, but until we have all the stuff to put a full installer together, try one of those .exes:
http://download.ross-tech.com/VCDS/d...-8-0-5-x86.zip
http://download.ross-tech.com/VCDS/d...-8-0-5-x64.zip
and confirm that it fixes your issues