I've added a App to exclusion list. But every time I start that app, Avast blcks it and asks again, if I want to add it to exclusion list.
I'm using Win 7.
EDIT:
Ah yeah, by the way: The same application might have ran a lot of times before this issue first occurs, but subsequent runs fail.(At least for some time. After some time the app is not blockt for some time)