Go to
www.logmein.com....I use them for remote capability, and the avast management console sees the VPN computers on an initial search. But I haven't been able to get the avast system working yet, so I am not 100% sure the management console actually is able to do its thing.
You will need two pieces of software from LogMeIn....the control software(the free version will work), and the Hamachi software. They will need to be installed on each computer you want to control. If you have a lot of computers through the VPN, this could get tedious. But I've been using them for years on 60+computers, and it's really been worth it.....as I am off site, 22 miles away.
Hope this helps.