Can't access Msvcp80.dll

Just ran a Windoctor scan which reported, among other things, 5 cases where Norton\Engine\16.50.0.135\navw32.exe & mculi32.exe could not access Msvcp80.dll & Msvcr80.dll.  Windoc didn’t know what to do about it and neither do I.  I just installed NIS2009.  No idea if that’s related.