nVnews posted a review on Uniblue Registry Booster
Registry Booster made a good impression. I was unable to find any glaring problems with it and cannot stress how slick and intuitive the interface is. It covers all the bases by not only detecting and repairing problems but also backing up your registry and cataloging those backups in its own restore section. Sure, you can backup your registry anytime via RegEdit > File > Export but this built-in ability is a nice touch. There is also the registry defragging feature that completes the full feature set.Uniblue Registry Booster Review