Calling a server-side method asynchronously vs. synchronously

[Bob Deanna]

All,

For xml-rpc v2.0....

Is the AsyncCallback object an additional argument to the server-side
remote xml-rpc method invoked?

Obviously the client calls executeAsync(...) instead of execute(...) and
must implement and pass an AsyncCallback object.
Does the server-side method being called need to be changed in any way,
if you change the client from calling it synchronously to
asynchronously?
  
Or is that handled by xml-rpc internally?

Thanks!
Bob