How Letsencrypt work for windows IIS?

Hi LoneCoder, Great Code. One question though. Is it possible to use or tweak this for Apache server hosted on Windows or strictly IIS. If just IIS, is it then possible to get the certificate file created and add to the certificate store so same is usable on an Apache engine on IIS

Great work nonetheless. I am looking to try test out but may need to go offline on my Apache to configure IIS