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ForceField has been designed specifically to protect the browser and all actions that occur within it, meaning it will not detect or remove any malware already on the system or brought in by any other method, leaving protection of the operating system firmly in the hands of existing antivirus software.

ForceField works by creating a virtual browser isolated from the machine it is running on. Malware

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and exploits then fail because they have no access to the computer's files or Registry.

In practice the user will notice little difference when surfing the internet on the virtual browser, besides it taking slightly longer to open certain pages and a glowing white aura around windows to indicate the software is activated. ForceField appears as a new toolbar within your PC's existing browser - either Internet Explorer or Firefox - with all your regular bookmarks and extensions left in place.

A message at the top of the page warns the user of dangerous sites, but doesn't block you from accessing them, while downloads are scrutinised against a database of more than 200,000 known dangerous downloads.

A privacy mode, accessed through the browser's toolbar, wipes all cookies, history and auto-fill and auto-completion information when the browser is closed.

ForceField beta is currently available for trial, with the final version expected in early 2008 for $29.95.