Kaspersky claims a 50% increase in scanning speed I did not use earlier versions of the software, so I can't verify that claim. The antivirus engine has been redone from previous versions it has new algorithms and can take advantage of multiple processors on a machine. The heart of any security suite is its anti-malware protection, and here Kaspersky does a very creditable job. You can tell it to ask how you would like to handle threats and potential threats, but you're far better off letting the software handle that for you. By default, it handles notices and alerts on its own, taking what it deems the most appropriate action for the potential threat. One potential problem with comprehensive security suites is that you can wind up spending as much time training the program, or answering its queries about how to handle potential threats, as you will actually using your computer.

On my Core Duo 1.83-GHz laptop running Windows XP with 1GB of RAM, I experienced virtually no performance hit at all.

Surprisingly, despite all these features, Kaspersky won't slow down your system. The list of protection methods offered by the software is very long indeed: antivirus, antispyware, a firewall, an intrusion-protection system, antiphishing, antidialer, antispam, parental controls, an ad banner blocker, application filtering. The default settings for each module should work well for most people, but for those who like to tweak, the program offers considerable customization tools as well. The software's sprawling features are well integrated via a single control panel with individual screens for anti-malware, system security, online security and content-filtering sections. Like many of its competitors, Kaspersky takes the 'everything but the kitchen sink' approach to Internet security, and it largely succeeds.

Fans of all-in-one security suites should take a serious look at the just-released Kaspersky Internet Security 2009, which includes modules for antivirus, antispyware, firewall and more, yet uses little enough system resources and RAM that it won't slow down or clog up your system.

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