index.js

var FastBootServer = require('ember-fastboot-server');
var express = require('express');

var server = new FastBootServer({
  distPath: '../fastboot-dist'
});

var app = express();

app.get('/*', server.middleware());


app.use(function(req, res, next) {
  res.status(404).send('Sorry cant find that!');
});

var listener = app.listen(process.env.PORT || 3000, function() {

	
  var host = listener.address().address;
  var port = listener.address().port;
});

web.config

<configuration>
  <system.webServer>
    <handlers>
    	<add name="iisnode" path="index.js" verb="*" modules="iisnode" />
    </handlers>
    <iisnode loggingEnabled="true" />
    <rewrite>
       <rules>
         <rule name="hello">
           <match url="/*" />
           <action type="Rewrite" url="index.js" />
         </rule>
       </rules>
     </rewrite>    
  </system.webServer>
</configuration>