There is something not clear for me! When Avast 5 find a virus on a file it will block the virus using the vault only or will also give the chance to clean the file?
Yes, if the file can be cleaned i think
quote: On the other hand, antivirus software can’t ‘clean’ a worm or a trojan, because there is nothing to clean - the entire file IS the worm or trojan.
The Anti-Virus or Anti-Malware test file
http://www.eicar.org/anti_virus_test_file.htm
Clean, Quarantine, or Delete?
http://antivirus.about.com/b/2007/03/11/clean-quarantine-or-delete.htm