deploy node web application to IIS. this is blog post

web.config

<configuration>
 <system.webServer>
   <handlers>
     <add name="iisnode" path="server/index.js" verb="*" modules="iisnode" />
   </handlers>

   <rewrite>
     <rules>
       <rule name="sample">
         <match url="api/*" />
         <action type="Rewrite" url="server/index.js" />
       </rule>
     </rules>
   </rewrite>
   
    <defaultDocument enabled="true">
     <files>
         <add value="new/index.html" />
     </files>
   </defaultDocument>
 </system.webServer>
</configuration>