<?xml version='1.0'?>
-<!DOCTYPE platform SYSTEM "http://simgrid.gforge.inria.fr/simgrid.dtd">
-<platform version="3"><!-- For using with ping_pong, platform_sendrecv.xml -->
+<!DOCTYPE platform SYSTEM "http://simgrid.gforge.inria.fr/simgrid/simgrid.dtd">
+<platform version="4">
+<!-- For using with ping_pong, platform_sendrecv.xml -->
<!-- receiver my_name -->
<process host="Disney" function="receiver"></process>