Please have a look at this. I'm running win 7 64 sp1. The registry cleaner in version v4.01.4093(64bit) is showing a long list of application path issues. None were there in the previous version. All of the registry keys are in this location, HKCU\Software\\Microsoft\WindowsNT\CurrentVersion\AppCompatFlags\Compatibility Assistant\Persisted. Most are .exe items. Since none of these appeared in the last many versions, I am quite suspicious of their validity, unless this version is now quite a bit more aggressive. Incidentally, I also run Norton security suite, provided by Comcast and there no registry errors in that module. (screenshot attached)