Persisting events in a SingleCall Remoting server

Hi All

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            How to persist client’s event subscription to server in a common class.

            Basically I need to notify the client from server. In order to do this I tired by having a event in a common class where client and server can access and the client will subscribe it to that event and in-turn it’ll subscribe it to server, when I invoke a server method call from client the particular event will raise and it leads to call the common class’s event and in turn will raise the client’s method. This logic is working for Server-Activated Singleton remotable objects, but failing for server activated SingleCall remotable objects. The problem is when the control comes to server it loses the event subscription of the common class, so can any one tell how to persist the event subscription

Thanks & Regards

Karthikeyan