Glary software found over 400 register errors and unwisely, I let it "fix" its findings without reviewing them. I think it corrupted the register, which eventually prevented execution of some of the programs. When I installed Bitdefender, it uninstalled Malwarebyte. When I tried to re-install it, I received error messages that the installation didn't complete and couldn't write (forgot the rest of the message)--I did not pay much attention at the time and did not save the complete message, a BIG mistake. Always must save the screen shot of the errors or take a picture--after that Malwarebyte would not run. Updating Windows 7--as stated previously--apparently fixed the register corruption and all the programs run as expected.
Thank you for your excellent program and all your help.