Photon Realtime and protobuf-net serialization (without garbage collection problems)

I costs me a lot of time to find a good way to use Photon Realtime with a simple to use and easy serializing framework like protobuf-net. Here are some issues that I had:

Here is my Solution:
I created a base message class that is used to register all the subclasses to photon and protobuf-net. The most important thing is, that you nest the protobuf serialization inside the photon serialization:

namespace MyGame
{
    using ExitGames.Client.Photon;
    using ProtoBuf;

    [ProtoContract]
    [ProtoInclude(1, typeof(GameInfoMessage))]
    [ProtoInclude(2, typeof(ClientJoinMessage))]
    [ProtoInclude(3, typeof(ClientPlayerUpdateMessage))]
    //[ProtoInclude(#no, typeof(YourType))]
    public class NetMessageBase
    {
        static NetMessageBase()
        {
            PhotonPeer.RegisterType(typeof(GameInfoMessage), 1, Serialize, Deserialize);
            PhotonPeer.RegisterType(typeof(ClientJoinMessage), 2, Serialize, Deserialize);
            PhotonPeer.RegisterType(typeof(ClientPlayerUpdateMessage), 3, Serialize, Deserialize);
            //PhotonPeer.RegisterType(typeof(YourType), #no, Serialize, Deserialize);
        }

        private static object Deserialize(StreamBuffer inStream, short length)
        {
            return Serializer.Deserialize(inStream);
        }

        private static short Serialize(StreamBuffer outStream, object customobject)
        {
            var positionStart = outStream.Position;
            Serializer.Serialize(outStream, customobject);
            return (short)(outStream.Position - positionStart);
        }
    }
}

After that you simply call:

OpRaiseEvent(1, message, reliable, RaiseEventOptions.Default);

And OnEventAction you get it as a response:

(NetMessageBase)photonEvent.Parameters[ParameterCode.Data]

Hope that helps! And I hope that google takes me here if I have this problem in the future!