getting attachments back from a messging service

[Rich Catlett <ri...@more.net>]

I'm looking for suggestions from anyone who has done this.  I'm looking 
to send an XML document back, and possibly in the future send back other 
items as attachments.  I already sent a question about adding these 
attachments to the response so they get back.  This question is about 
retrieving them and telling the difference between an error sent back in 
an envelope, and the XML document snet back as the rootpart to the 
response and possible attachments.  For a message there is a 
getSOAPContext which returns the SOAPContext that correspondes to the 
response from there I assume I could get the rootpart which would either 
be the envelope which contains the Soapexception which I could then 
parse with regular expressions to pull out what I want, or it would be 
the XML response that I am expecting.  Since I have a SOAPContext which 
is the response I would then be able to extract any extra bodyparts 
being the attachments that got sent back.  
Could somebody please respond and tell me if I am barking up the right 
tree or if I should go a different route.
Thanks.

Rich Catlett