first, sorry for my insufficient knowledge about hws.
second, thanks Chris Whytock[MSFT] for the previous question.
ok, let's see my problem.
now i have a very simple activity model. i just activate new activity flow b
y attach activation message (and send out TaskMessage via FILE adapter), but
 after the target user has a response to task (send TaskResponse message) i 
should transit to the next step in Activity flow by using method "GetActivit
yList" of web service, but i  in later step, ActionInstanceID and TaskID are
 required as parameters of this method (i pass Guid.Empty as parameters for 
both). which step i should get one? (can i get one before send the TaskMessa
ge?)
                                                                  Thanks

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