Does that mean, that the cleaner will set the following Registry entries back to default, even if it does not know that special Virus?

[HKEY_CLASSES_ROOT\batfile\shell\open\command]
[HKEY_CLASSES_ROOT\comfile\shell\open\command]
[HKEY_CLASSES_ROOT\exefile\shell\open\command]
[HKEY_CLASSES_ROOT\piffile\shell\open\command]
[HKEY_CLASSES_ROOT\regfile\shell\open\command]
[HKEY_CLASSES_ROOT\scrfile\shell\config\command]
[HKEY_CLASSES_ROOT\scrfile\shell\open\command]