OK, in that case it is fine - having ads in the Free or Trial version is not a problem, I fully support it (maybe it would be good to indicate somehow that the connection will not exist in the purchased Pro version, so that potential customers are not turned away like me). So I guess this solves the AvastUI.exe issue - in case the automatic connection exists in the purchased Pro version as well, I will ask for an immediate refund.
Now, regarding the AvastSvc.exe, I performed a new installation in a completely clean virtual machine so that I am absolutely certain. I chose not be become a part of the Avast community, I did NOT install the Webshield, Mailshield, IMshield, P2PShield. I set Engine and Virus definitions, and Program updates both to Manual. I enabled "My computer is permanently connected to the internet.". And I unchecked the following Components Monitored (i.e. the following components are not monitored): Virus definition version, Program version, Definitions auto updates. But I still get AvastSvc.exe trying to connect to the internet... (And AvastUI.exe also trying to connect, but now I know why).
Any suggestions?
Let me attempt to explain it again - why I am doing this. Imagine the following scenario - you start your computer every day and work on it, and you have it set up to alert you to any new connection to the internet (in other words, a connection that you have not set to be allowed before). You do not see any connections to the internet from Avast for a 100 days, but then suddenly Avast starts to connect to the internet. This might indicate that something is wrong - i.e. avast may have become infected by a virus, or something to that effect. Thanks to being alerted to this connection, you were then able to investigate.
Now imagine another scenario - same as before, but Avast connects to internet every day. And then one day, Avast becomes infected (please bear with me, this is a hypothetical scenario), but because it has always been connecting to the internet, you will not find this behavior suspicious and so you will not be able to prevent the spread of malware.