We regret to inform you that Zattoo cannot be added to our Compatibility List.

According to Zattoo's Terms and Policies, they state the following (http://zattoo.com/en/terms-policies):
"3.9 P2P technology
The software provided by Zattoo within the Services utilizes advanced peer to peer network technology (“P2P ITV”). ... "

Unfortunately, Zattoo cannot be added to our Compatibility List for the following reason (review this link):
http://www.hide-my-ip.com/forum/index.php?showtopic=24
"our software currently does not support game servers, IRC clients, P2P or torrent programs"