mks_vir package for Windows is a modern antivirus software that uses most novative solutions used all over the world, in the fight with computer viruses, trojan horses and internet worms. The package consists of several main modules. Their combined operation protects the computer, and the files within, against the intrusion of harmful programs. These modules are: resident antivirus monitor, disk and file scanner as well as incoming e-mail scanner. You can do first install with this installation, as well as update your previously installed software. To install the full version you need a license number.