Thanks Pondus for your indepth info but unfortunately the SuperAntiSpyware exe file was not in quarantine so I could not use any of the choices. I resolved it by reinstalling the program again after going to Exclusions and preventing the program from being scanned. The said version has been running for quite a few months without being affected by Avast so I wondered if the Avast updated definition database,today, resulted in a false-positive.