Nope, use AshQuick.exe. But why not use the Instant Messaging provider in Avast?
(see Avast's help/manual)
These are the instructions provided by MSN ....
I 'm not interested in instant messages ...MSN Messager is
much more . My son can play with Age of Empires (a game ) and more others .
I could show you these instructions....but they are in Italian .