Introducing IIS Express

Developers today build and test ASP. NET sites and applications using one of two web-servers: The ASP. NET Development Server that comes built-into Visual Studio The IIS Web Server that comes built-into Windows Both of the above options have their pros and cons, and many ASP. NET developers have told us: “I wish I could have the ease of use of the ASP. NET Development Server, but still have all the power and features of IIS”.

Read More at ASP.NET Team