COM+ object activation in a different partition

Question

I had created a COM+ domain partition then mapped it to a Windows 2008 server machine and imported a COM+ application into it.

I tried using the following C# code to activate an object from that specific partition on the server remotely:

//partition guid
Guid guidMyPartition = new Guid("41E90F3E-56C1-4633-81C3-6E8BAC8BDD70");
//parition moniker
string uri= "partition:{" + guidMyPartition + "}/new:MyObject";
Type t = Type.GetTypeFromProgID("MyObject", "MyServer");
MyObject obj = (MyObject)Activator.GetObject(t, uri);

But I get this exception:

Cannot create channel sink to connect to URL 'partition:{41e90f3e-56c1-4633-81c3-6e8bac8bdd70}/new:MyObject'. An appropriate channel has probably not been registered.

Does anybody know how such an activation can be accomplished?