The Registry Drill is the most in-depth Registry utility and cleaner available today. It goes through the Registry character by character searching for any possible errors. A blank Key, a pointer to a non existing Key, a non existing file, invalid characters, and more. The Drill has several main components, the Quick Drill which quickly searches the Registry for 15 different possible types of errors that other Registry cleaners do not. The Deep Drill goes through the entire Registry slowly and carefully. looking for more than 50 different kinds of errors. It has a search and Relace, Find All Pointers to a file and can load an additional Registry File into the Registry. The Registry Drill's help file, walks you through any repairs you may need to make and carefully explains which errors may be valid. It explains why a Key is invalid and what information is missing or wrong.