Originally Posted by Lolzorz
Try to extract the file to your Desktop and then load the file into Horizon.
Avast would count it as a virus, but it was repealed, and I believe it blocked the connection to the servers.
This is what I thought, because when I was testing Horizon with Avast! that happened to me.
From what he is saying and the information he is giving right now, the only thing I can say is the problem is Avast!, but i'm not too sure if he is using it yet.