I don't know what the programa does. But it's doing well and have no problem at the moment. Certainly, I don't have any real problem anyway.
If the avast.db don't work it's probably substituted by new values on the fields and so on. I don't really know, but don't care.
I don't have a special configuration, but the exceptions seems to be in avast4.ini because when indepent the installations dissapeared, but when I copy both files : avast.db and avast4.ini from the original partition system the exceptions reappeared and well configured.
Also, when the independation is done Avast! offers actuallize version. Proofed in three systems and I have five to resolve...