Which comes first, pro_start_confirmation or pro_start_callback?

I was noticing that pro_start_confirmation() and pro_start_callback() 
sound mighty similar.  It sounds like the pro_start_confirmation() may be 
slightly later, but if so I'm curious what the distinction is between the 
two.  In other words, once a response is received to a request to start a 
channel, what remains to be done before the channel is actually considered 
to have started?  Is there some local housekeeping first that may take 
significant time, or what?


In a vaguely related question, is there a clean and convenient way to pass
a short text string from the channel initiator to the peer for the remote
profile to utilize when it is asked to start a channel?  Or it is expected 
that any such profile-specific dealings should wait until after the 
channel has already started?

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-- David C. Niemi           Adeptech Systems, Inc.   --
-- Reston, Virginia, USA    http://www.adeptech.com/ --
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