oh, this was just plain stupid of me... didn't notice the pinned icon on the first 3 threads, so when I clicked on post button...didn't see new thread... posted again... realized I have only 1 neuron...
In fact, as you kindly replied, the real useless thread is the other one with update settings export in the title =)
BTW, I already went through the thread you mentionned. But as I couldn't find the answer to my question, I just thought there was some kind of setting to append to the avast4.ini file on my own. Guess I was wrong.