I have had one or two little prolems with ccleaner under the Issues app,however this was not to much of a problem due to the backup it gives you.
Though i do find Regscrubxp a bit better and more thorough,and seems a little more aggresive.....so is best used with a little caution.
After reading through your previous thread,it looks like you may be concerned with left over registry paths from previous uninstallations causing conflicts.
I suppose you could try Cleanup click here this can be set to be very aggressive, i would be inclined to create a restore point first or a backup of the registry if used aggressively.
Maybe this will help Diemmess,good luck.