I checked out RegCure some time back. Our program, RegVac Registry Cleaner (http://superwin.com/regvac.htm
), cleans all valid entries that RegCure cleans and more. RegCure cleans only a fraction of the things RegVac cleans.
I found that RegCure removes some entries that it should not.
RegCure also cleans shortcuts which have nothing to do with the registry. Some registry cleaners have added shortcuts to the things they clean purely to be able to report that they clean more than other registry cleaners. That is a scam.
RegCure also cleans empty registry keys but some keys are supposed to be empty and removing them will cause problems. RegVac keeps the empty keys that are supposed to be empty.