RAV AntiVirus Desktop - Version 8.5 RAV AntiVirus Desktop protects the contents of your PC from malicious computer viruses. It combines a powerful scanner with a code emulator to detect most advanced Java, polymorphic, and macro viruses. It also scans Internet downloads, and protects you from many of the new email worms and viruses. It resides in your system tray to provide constant background monitoring. It can detect more than 65,000 known viruses.