Internet Information Services (IIS) is defined as a flexible, general-purpose web server from Microsoft which runs on Windows systems to serve requested HTML pages or files.

An IIS web server first accepts requests from remote client computers and then returns the appropriate response. This basic functionality of iis allows web servers to share and deliver information across local area networks (LAN), such as corporate intranets, and wide area networks (WAN), such as the internet.

A web server can be used to deliver information to users in several forms, such as static webpages which is coded in HTML; through file exchanges as downloads and uploads; and text documents, image files and more.