Removing anonymous event handlers

Possible Duplicate:
C#: How to remove a lambda event handler

Is it possible to remove an event handler which was attached as anonymous function? Let's say I have an event, and I subscribe to it in this way:

TestClass classs = new TestClass ();
classs.myCustomEvent +=  (a,b) => { Console.Write(""); };

Is it possible somehow to remove this eventHandler using -= ??