Spybot Search and Destroy - Features
Spybot Search and Destroy has a basic spyware scanner in it. It works as you'd expect it to work. It has fairly good detection, and it is generally quite good for taking out some minor annoyances, such as lingering advertisements or tracking cookies.
On your first installation, you will have an opportunity to also make a backup of your registry. Spybot Search and Destroy software has good recovery options in case you make any mistakes while working.
There should be a secure file shredder program. I doubt the average user will need this very often, but it's a nice feature to clean up secure files.
There are also a few browser plug-ins for IE that can help your security.
Teatimer is technically a separate program, but it's a good source of active protection that monitors your computer and keeps an eye on the registry. It will send up alerts any time a major change happens and should prevent some of the more nasty pieces of spyware from drastically changing anything on your computer.
The really interesting feature is the "Immunize" button though. By using the immunize button, you can pull up an analysis of your browsers and use Spybot S&D to close security holes and shut down exploits. It's a great idea and it doesn't take too much time. While it may not give you a fortress, it does make the malware work harder for it.
If you'd like to learn more about its detection rate and general performance, you can look at our more technical Spybot Search and Destroy review.