Well so far I got Windows Vista's advanced disk cleaner automated on schedule.

CCleaner for the moment, partially.

Is there any parameter to clean the registry, or does the /auto parameter include the registry as well?

If this does, well, another program automated and off my weekly schedule list.

As far as I know, the auto parameter refers to cleaning only.

Cleaning the registry without you there to check, and select yes, to the backup it offers, would prove difficult.