title: WCF communication with several clients without IIS
body: <p>we're working on a peer to peer comm software that would allow a number of grocery stores to sync their inventory with what we call "headquarters".
  To so this, we're thinking WCF+WPF, and no IIS and web services. My experience with WCF is basically zero, so my question is whether a TCP comm solution using WCF would work. The data that's being transferred is quite limited, about 2MB for a compressed plain text file (so we're sending binary data!), and this is done once per day only. So bandwidth/load shouldn't be an issue here.
  The idea at this point is to have a WCF "server" running at HQ. Stores make themselves known to that server and then send files back and forth (simliliar to a chat application).
  What I'm not sure of: does every store need to have a WCF "server" (or endpoint)? How would the server (=HQ) send a file to one of the clients (=stores)? Every store can send a file to any other store, and the HQ, and every store can also "request" a file from any other store/HQ.</p>
  
  <p>Two limitations: None of the machines/computers involved can run Windows server for budget reasons, and as stated before IIS is a no-go.</p>