Hello,
I already have a registry cleaning engine in VC++ and a much older one in VB6, which I provide to others so that they can integrate it into own application and sell it as a registry optimizer with their name and branding. If you like I can send you a demo version to try. The price I have bid is to give you a complete app with skinning and also installer and uninstaller. I also have a web based license manager which integrates with the app to generate license keys and handle activation and license expiry. That is a different module and not a part of this project, in case you are interested in that.