title: Simple cross-platform process to process communication in Mono?
body: <p>I'm working on a Mono application that will run on Linux, Mac, and Windows, and need the ability for apps (on a single os) to send simple string messages to each other. </p>
  
  <p>Specifically, I want a Single Instance Application. If a second instance is attempted to be started, it will instead send a message to the single instance already running.</p>
  
  <p>DBus is out, as I don't want to have that be an additional requirement. 
  Socket communication seems to be hard, as windows seems to not allow permission to connect.
  Memory Mapped Files seems not to be supported in Mono.
  Named Pipes appears not to be supported in Mono.
  IPC seems not to be supported on Mono.</p>
  
  <p>So, is there a simple method to send string messages on a single machine to a server app that works on each os, without requiring permissions, or additional dependencies?</p>