Key technologies: 
Improved Antivirus and anti-spyware engine 
New avast! Sandbox 
New Silent Firewall 
New Antispam 
NewBehavior Shield 
New avast! Intelligent Scanner 
New Silent/Gaming Mode 
Real time anti-rootkit protection 
avast! Community IQ 
Behavioral Honeypots 
Smart virus updates 
Green computing 
avast! iTrack 
File System / Mail Shield 
Web Shield 
IM / P2P Shield 
Network Shield 
Script Shield

Install Notes: 
I have not personally installed this software, but this seems to be the most straight forward installation method. Please comment if you have any problems, and i will try to find a solution for you. 
1. Run 'setup_ais.exe' and follow the install prompts. 
2. When license is requested, point to the path where 'Net2012-04-24.avastlic' is stored. 
3. Your finished, Reboot if necessary. это ключи антивирус классный