FoxIt / Adobe Reader issues

I see from Task Manager that AcroRd32.exe *32 is running ... although I don't have Acrobat DC open. It's not been open in my current boot Yet AcroRd32.exe 832 is using 8% of my large CPU. I have DOPUS pointing to two PDFs but the time cursor just spins around. It would seem to me (end-user/not geek) that Adobe is involved here even though DOPUS labels these PDFs as "Foxit PDF Documents." Suggestions appreciated.