AVG Free Edition plugs in itself followings komponenty: scintiscanner, monitor, scintiscanner of e-mail, system of automatic update of antivirus base over the internet, viral depository for safe storage and treatment of the infected files. AVG able to work jointly with Kerio Personal, Zone Alarm Pro and fayrvollom, built-in in Windows XP. In general, among free antiviruses, sure the best.