Remoting provides a way for fire-and-forget OneWay messages from client to the server. Just adding a [OneWay] attribute to a method of your remoted type would make the method invokation oneway. Something like:

public class Remote : MarshalByRefObject
{
  public void RemoteMethod ()
  {}

  [OneWay]
  public void RemoteOneWayMethod()
  {}
}

When invoking a oneway method the client will not wait for a response and the call will return immediately. In essence the call gets converted to an async call and the client doesnt wait for a server response.

Note: This behaviour occurs only when invoking a method marked with [OneWay] on a remoting proxy. Invoking the same method on a regular object will not have the desired effect. It will be called synchronously like any other method.