iSeries to Windows socket connection

I need to create a windows socket connection from an iSeries to a window
server. The goal is to take iSeries data (some in real time, and some in
batch) and send it to the windows box which will be running a proprietary
electronic medical records application. Initially I'll only be uploading the
data to the windows box.

My first question to the software vender was how do I push the iSeries data
to the windows system? When I mentioned FTP to the techies for the windows
server, they could only respond that all I needed to do was use TCP and
create a socket connection to a specific port at the IP address that they
would supply to me. (Actually I don't think they even understood that FTP
was a protocol that runs under TCP - all it did was confuse them - but
that's a topic for another day.)

I've never used a socket to connect to a windows box, so how do I proceed?
What is the mechanism that will 'push' the data from the iSeries to the
windows box?

I found a Redbook (SG245190 - V4 TCP/IP for AS/400 - More Cool Things Than
Ever) with a chapter titled "Implementing the AS/400 System as a Socks
Client". It shows how to config socks via iSeries Navigator. Is this the
right place to start?

Any comments would be greatly appreciated.