Multiple calls to PutFile (General questions)

What is the expected behavior if PutFile is called multiple times in NON-blocking mode.

Here's some pseudo code...

SetModeNonblocking();
PutFile(src1, dest1);
PutFile(src2, dest2);
PutFile(src3, dest3);
PutFile(src4, dest4);

I'm mainly interested in knowing how the Progress and Done events will be fired for each operation. How will i know what file the new progress event is for? How will i know what file the Done event is for?

Thanks in advance,
Chris