It sounds like a classic Web Service scenario. You would use foxpro to create a mtdll that would run with an IIS web server on your network. There's an example at: http://activevfp.codeplex.com/releases/view/33523
"This is a general question... or more precisely a request for thoughts and ideas on how to handle a request being presented to me by a client. There are tons of details involved, but for this posting I will try to summarize the current environment and request briefly, as I am just curious as to how some of you would handle this."