vulcancontrol.dll missing

I'm trying to install a Photoshop extension in CC 2014.  When I go to the extension manager a CEPServicemanager.exe system error pops up saying "The program can't start because VulcanControl.dll is missing from your computer. Try reinstalling the program to fix this problem.

So I uninstalled the extension manager and reinstalled it.  Same error.

Then I unistalled all the Adobe apps and reinstalled them.  Same error.

How do I fix this?