More info in here:
nCleaner contains an advanced system and application cleaner with over 90 cleaning items available, a Registry Cleaner, a Tweak Manager, an advanced Startup Manager, a Junk Finder, a Free Space Shredder, a System Resource Monitor, a System Adviser, supports logging and statistics as well as advanced Scheduling.
nCleaner has the best cleaning ration on the market due to an advance detection algorithm, also providing security and stability. With nCleaner you can free up to 2 GB of unnecessary disk space. nCleaner supports and handles all major Internet browsers including Microsoft Internet Explorer (and all derived browsers like Avast), Mozilla Firefox, Netscape and Opera. It also supports and handles all major Instant Messaging applications like Yahoo Messenger, Windows MSN Messenger, ICQ, AOL and Skype, office applications, and system items.