Shavlik NetChk Protect 7 has integrated the VIPRE Antivirus + Antispyware engine from SunBelt Technologies. Now VIPRE’s technology has earned a #1 ranking from PC Antivirus Reviews. The engines that have been integrated into NetChk Protect 7 ranked high for defense against spyware, superior active protection, and the least consumption of system resources. See the results of reviews against BitDefender, Norton, McAfee and others at this URL: http://www.pcantivirusreviews.com/comparison/