Webroot Spy Sweeper 5.5
The interface is easy to understand, and the Home section should steer new users to the necessities: starting a scan, checking shield status, and updating definitions. As in older versions, the Quarantine section will let you restore any components accidentally altered after a system scan. The Sweep option includes a flexible scheduler, the ability to change the default scanning method level, and other options to customize the program. In addition to its real-time, browser, and ActiveX shields, the app offers several barriers to other threats such as Windows Messenger Service exploits, keyloggers, rogue start-up items, and pesky rootkits.
There were no problems running the app on Vista, but be sure to uninstall any other third-party antivirus apps to avoid conflicts. Unfortunately, Spy Sweeper maintains its detection-only trial limitation, making it impossible to test how well it actually removes malware. Anybody concerned with keeping malicious software and viruses off their computer shouldn't bother with the trial unless they're pretty sure they're going to buy the full version.
Note: Removal of current infection is limited to the paid version.
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