text: var http = require('http');
  
  http.createServer(function (req, res) {
      res.writeHead(200, {'Content-Type': 'text/html'});
      res.end('Hello, world! [helloworld sample; iisnode version is ' + process.env.IISNODE_VERSION + ', node version is ' + process.version + ']');
  }).listen(process.env.PORT);  