This is free avast! 4 Home Edition, avast! obtained VB100% awards in 2002/4 Virus Bulletin comparative reviews under Windows.

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.
* Network Shield – scans traffic for malicious content – lightweight Firewall.
* Resident protection for IM programs (e.g. MSN Messenger, ICQ) and P2P programs (e.g. Kazaa, DirectConnect).
* 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 – scans PC during your coffee breaks.
* Virus Chest – safety isolated folder to store infected, suspicious and even some system files – to restore them.