every time a user refreshes 'programs & features' from the control panel these values will be recreated in:
HKCU\software\microsoft\windows\currentversion\app management\arpcache\
My impression is that jv16 pt is cleaning this path just to inflate their error result number. Personally I don't think this path is necessarily junk entries & it leads me to wonder if this tool really does less for me than I think it does.