Kaspersky Anti-Virus delivers core protection from the latest viruses, malware, and more. It works behind-the-scenes with intelligent scanning and small, frequent updates, while pro-actively protecting you from known and emerging threats. Minimum system Requirements Microsoft Windows 7/XP/Vista. Quick start Guide and Activation key on a Product Activation Card are included. A CD-ROM drive is required for program installation from CD; network installation is also supported for Personal Computers without a CD-ROM reader and NetBook computers.