Spyware and adware could be installed on your computer without your knowledge. These programs allow companies to monitor your Internet-browsing patterns and even to inundate you with annoying pop-up ads. SpyCleaner identifies and removes these surreptitiously installed applications. Using updatable reflists, which are similar to temporary Internet files, the program looks for traces of recognized adware modules. When it's finished searching, it displays a list of what was found and lets you select the items you'd like to remove from your system.