How do you access a method from another class / thread without instantiation, static variables or passing references?

It sounds like ClassA could expose a CommandReceived event. The form would then subscribe to that event for each instance of ClassA . This is really passing a reference to ClassA within the delegate event handler, but it's all hidden.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.