Freeware is copyrighted computer software which is made available for use free of charge, for an unlimited time, as opposed to shareware where the user is required to pay (e.g. after some trial period or for additional functionality). The license may be "free for personal, non-commercial use." Everything created with the freeware programs can be distributed at no cost (for example graphic, documents, or sounds made by user). (en.wikipedia.org/wiki/Freeware)

avast! Free Antivirus 6

avast! Free Antivirus 6 comes with improved antivirus and new features such as AutoSandbox, WebRep, and more. This freeware application represents the best free antivirus protection currently available on the market. Antivirus package available free for noncommercial home users. This impressive software provides the same steadfast protection of well-known antivirus programs, yet it's surprisingly free.

avast! Free Antivirus 6 Features
+ AutoSandbox
+ WebRep
+ Anti-spyware built-in
+ Web Shield
+ Anti-rootkit built-in
+ Automatic updates
+ Strong self-protection
+ Virus Chest
+ Antivirus kernel
+ System integration
+ Simple User Interface
+ Integrated Virus Cleaner
+ Resident protection
+ Support for 64-bit Windows
+ P2P and IM Shields
+ Internationalization
+ Network Shield

avast! Free Antivirus 6.0 has license: Non-Commercial Freeware
File Size: 59.65 MB
Freeware avast! Free Antivirus 6.0 Requirements:
- Windows 2000 / XP / 2003 / Vista / Windows7 / XP64 / Vista64 / Windows7 64