web.config

<configuration>
  <system.webServer>

  	<iisnode loggingEnabled="true" logDirectoryNameSuffix="logs" />
	
    <!-- indicates that the server.js file is a node.js application to be handled by the iisnode module -->
    <handlers>
      <add name="iisnode" path="server.js" verb="*" modules="iisnode"/>
    </handlers>

    <!-- use URL rewriting to redirect the entire branch of the URL namespace
    to hello.js node.js application; for example, the following URLs will 
    all be handled by hello.js:
    
        http://localhost/ekmHoliCal/foo
        http://localhost/ekmHoliCal/bar
        
    --> 

    <rewrite>
      <rules>
        <rule name="ekmHoliCal">
          <match url="/*" />
          <action type="Rewrite" url="server.js" />
        </rule>
      </rules>
    </rewrite>
    
  </system.webServer>
</configuration>