It is one of the best cos it dosen't mess with your registr more than needed. When useing some other progrems u can easyly end up losing some registry data. For eg. "Hijack This" can be very dangerus to use for someone that dosen't know what he is doing.

It is hard to belive that it ads spyware and ad-aware, I just can't c the logic in that, you must have misunderstood something.

The latest version of Spybot - Search & Destroy adds some truly useful features to an already excellent application. The program still checks your system against a comprehensive database of adware and other system invaders, but it works much faster now. It also features several interface improvements, including multiple skins for dressing up its appearance. Scan results now appear arranged by groups in a tree, and a sliding panel lets you instantly view information about a selected item to help you decide whether to kill it or not. The Immunize feature blocks a plethora of uninvited Web-borne flotsam before it reaches your computer. Other useful tools, including Secure Shredder, complement the program's basic functionality for completely destroying files. Hosts File blocks adware servers from your computer, and System Startup lets you review which apps load when you start your computer. The functionality makes Spybot - Search & Destroy a must-have for all Internet users, and this version is a worthwhile upgrade.