...I've had this program for a couple of years (but only registered it last year--you download it for free but it is 'crippled': it will only repair the first ten problems it finds and then tells you you need to register the program to fix the rest ). The registered version has found and repaired a lot more registry errors than my Norton did, so I've kept it. Also, it has a 'defrag' feature that supposedly improves the efficiency of the registry.
...But I wonder what the G2G community thinks of this program, what if any experiences you have had with it, etc...