Thanks for your response.

What does SOAP, XML-RPC and the third (uses simple http post/get with a standard response format) not provide that what you have does provide?

Well, SOAP and XML-RPC provide excessive bloat that the solution proposed in the original post doesn't {grin}.

The "protocol" section of the original post begins to describe how to standardize on which HTTP headers to use in which ways to do "simple http post/get" type interactions.

-- Douglas Hunter