Norton Antivirus 2008 protects your PC against spyware, viruses, and other Internet threats. It works automatically to block harmful software before it penetrates your system, cleans email and instant messaging attachments and Internet downloads, and includes automatic updates to keep you protected against newly discovered threats. Norton Antivirus works quietly in the background, so you can use your PC without disruption. "Set-and-forget" functionality delivers optimum antivirus protection right out of the box, without requiring any intervention. Norton Antivirus automatically checks for and installs new threat signatures and product features as they become available throughout your service subscription. Its performance & enhancements are Start, scan, and run faster. Improved performance delivers an enhanced online experience. Get help fast with free online technical support via live chat and email all from within the product. SONAR (Symantec Online Network for Advanced Response) technology delivers behavior-based protection that can detect emerging spyware and viruses even before traditional signature-based definitions are available. Optimized product design improves scan times and decreases impact on system startup and resource usage.