Free antivirus for home noncommercial use avast! 4 Home Edition is a free complete ICSA certified antivirus package for home noncommercial use.avast! obtained VB100% award in June 2002 Virus Bulletin comparative review under Windows XP Pro and in November 2002 issue under Windows 2000 Advanced Server.avast! Home Edition includes the following components:On Demand Scanner - with Skinnable Simple Interface - just select what do you want to scan in which way and press the Play button.On Access Scanner - resident scanning of all files being opened, read and written and behavior blocker monitoring dangerous actions of viruses.E-mail scanner easily integrates with most mail clients and it checks both incoming and outgoing mails, it provides heuristic analysis of mail content to protect against new Worms.Boot Time Scanner - scans disks in the same way and in the same time as Windows CHKDSK does (on NT/2000/XP only). Explorer Scanner - right click on the object allows you to scan it.Screen Saver Scanner - integrates with your Screen Saver to scan PC during your coffee breaks.Virus Chest - safety isolated folder to store infected, suspicious and even some system files - to restore them.Our true incremental updates are based on iAVS technology and they are available for virus definition file update and for program upgrade.You can download and install updates by simple clicking on the iAVS icon, it can be checked and done automatically when you are On-line. The update files of size under 100 KB are available at least twice a week and within couple of hours in the case of emergency of new virus. They are automatically downloaded, installed and loaded to avast! without restart or logoff.Program upgrades are available to incorporate new features time to time, they are incremental too (about 300 KB).You will download a 60 days fully functional demo. You will obtain the free license key by E-mail after the registration. Download, install, try, register, update and relax!