AthTek RegistryCleaner - Version 1.06 RegistryCleaner is designed for Windows users to fast scan and clean the registry. It enables you to manage the registry without any registry knowledge. RegistryCleaner can also subtly compact the registry, to boost your system speed. It does NOT like any other registry tool that they profess the ability to handle the registry on 64-bit systems but actually not. RegistryCleaner has the real ability to manage a 64-bit registry!