Hitman Pro 3 (64 -bits) is designed to protect the system from viruses like spyware and malware while having antivirus software and firewall at the same time. If the system has just one protection software it is not safe to rely on just one single software so that is why it is called a second opinion scanner that makes sure that the system is secure. It works without creating any conflict with the other applications. It is faster and does not affect the speed and performance of the system . It can be simply installed and moreover it can be run directly from the CD, online network, attached DVD, USB or hard drive.