IIS, or Internet Information Server, is a web server application that you use to set up your own web server, and publish your own content. You can use IIS to set your computer up to act as an Internet web server, or it can be used locally to serve an intranet. Many companies use intranets as a resource for employees to share information and can be very useful.

When you first install Microsoft Windows 7, IIS is not turned on by default, so in other words you cannot begin to publish websites straight out the box. It is however, easy to turn on, and this is how you do it.