Well, I must be in the 10% of problems in CCleaner that are not fixed by DAF medium. I double clicked Dial-a-Fix.exe after extracting it, clicked Tools, Clicked Repair Permissions and clicked Go. All worked well. I closed Dial-a-Fix, opened CCleaner, ran a new issues scan, those two little beggars showed up, I clicked Fix Selected Issues, they went away. I closed CCleaner, ran an issues scan again and sure enough, they were back again. I rebooted and ran an issues scan again thinking maybe DAF needed a reboot to fix. Same thing all over again. I booted into safe mode and ran an issues scan and they didn't go away there either.
If these Unused File Extensions are not harmful, I guess I can live with them but they are sure are annoying, appearing every time I run CCleaner. By the way, I downloaded Registry Mechanic which does not pick them up as file extension problems. Any other suggestions?
Thank you again, Cassie