The Mountain View, Calif., company said it rolled out GreenBorder Pro to create an "impenetrable protective barrier" that keeps all interactions with a Web site and its associated content and programs away from the internal parts of a personal computer.
The technology effectively creates a DMZ between the Windows desktop and programs downloaded from Web pages or opened from e-mail messages in Microsoft Outlook.
Operating system calls from Web-based programs that are trying to access system resources, such as files or the Windows registry, are blocked.
GreenBorder Pro does not depend on scanning or advance identification of malicious code and will not require patching or updating, the company said.
In an effort to lure new users, the company announced a special launch promotion that lets the first 10,000 users who download GreenBorder Pro receive a free one-year license for the software.
The software is available for Windows XP and Windows 2000 systems and costs $49.95 per year for one PC. For the enterprise market, GreenBorder sells bulk licenses.
GreenBorder said the software also features a "privacy zone" that prevents identity thieves from hijacking personal data, such as passwords, account numbers and Social Security numbers.
"When a user is done shopping or banking, the privacy zone automatically clears any personal data that might have been left on the PC, ensuring that no traces of the interaction remain that could be exposed at a later time," the company said in a statement.
The software also comes with an add-on called GreenBorder SafeFiles that allows users to safely open and view files that may contain embedded malicious code. This option allows the safe exchange of digital content between strangers, the company said.