In Windows 7, Go to Control Panel \ All Control Panel Items \ Programs and Features

Press “Turn Windows features on or off” and make sure that you select following features:

• Under Internet Information Services make sure that you select available options (including options in sub nodes), that you going to use. Usually it is everything, except probably ASP (but make sure you select ASP.NET instead), CGI (if you going to use any CGI development, PHP for example, you need to select this feature), Server-Side Includes, FTP Server (if you not need to setup own FTP Server) etc:

• Make sure you select Windows Communication Foundation HTTP Activation and Non-HTTP Activation features (features used for example for Azure or WCF development) – see illustration above