I think I have tried this and failed, but here goes:
I have a client "MyForm:. First thing it does is instanciate a server "myServer". "MyForm" also has a procedure "MyClientServerMessage(cMessage)"

Can the server issue a method to the client (MyForm) using supeclass to push a client procedure from a server method, eg (something like):
MyClientServerMessage("Hello World")::MyForm

Or, will it only work if "MyForm" is also a server?