I observed the most invalid entries are deleted and not repaired. It looks to be a drastic solution. Maybe it would be useful to provide a possible solutions analyzer and so to let the user choose among them? Sometimes there's a wrong link it should be properly corrected instead of deleting it.
In case a registry entries modification could crash the system, I think it could be useful an option permitting PT2006 to easily restore a previous registry state at system startup (before Xp gui). This option can be chosen before cleaning process. Also it would be interesting to get a PT2006 dos application, I can install on a floppy o a pendrive, to recover PT2006 backups.
What do you think about?