IIS Express is a simple web server that can run on Windows with a couple of easy features for developers of Windows applications. This includes things like, webhooks, a modern way of accepting POST requests and responding to them. Each IIS Express site is managed on a user basis, as it’s written as a tool to assist with development. Many web applications will attempt to communicate with one another via a specific port. And when you’re using IIS Express, you’ll need to create a socket binding to that port and allow external users to connect (again, by default, IIS Express is configured for developers to test code on their own machines). To do…