i post a topic here :
http://forum.avast.com/index.php?topic=111178.0
and thank very much for some people help, but still now i have not resolve this problem …
so i create a Ticket(for this false block alert of avast) to Avast support center in the date :12.12.2012, the Ticket ID:BXK-977772,
so many days pasted i have not got any response…
it’s so sadly!!