Les Lytollis wrote: > Hi guys > > Been away from the list for a while - back now, with a new job...and > new questions;) > > I am implementing a .NET B2B web-based ordering system which will get > its data from a Progress DB on AIX fronted by a bespoke SOP system. > For a number of reasons, we want to let the SOP system query the > Progress DB rather than let the web app query it directly, so the web > app will make a request to the SOP system. > > The suppliers of the SOP system are prepared to make some sort of > listener to accept message requests, but what I can't get my head > around is how I get the message to and from the SOP system. Do I need > to create some sort of server or listener on the web app that can > accept responses? Is this a Web Service? A message queue? SOAP? > Confused? You will be... I'd use XML.