BullGuard Antivirus - Version 3.5 Protect your PC from hackers and viruses. With full antivirus, firewall, and backup protection, BullGuard secures your PC from the menaces of the Web. BullGuard features full e-mail protection, no matter what e-mail-client you use. The antivirus database is maintained and updated around the clock. Powerful scan engines ensure detection and removal of all the newest viruses. Also, all peer-to-peer applications such as Kazaa, and ICQ.