1. Open Server Manager
2. Select Roles; right click -> Add Roles and Add Roles Wizard appears
3. In Add Roles Wizard: select Web Server (IIS) in Server Roles page and click Next
4. In Role Services page: select desired services (e.g. ISAPI extensions if IIS should host Axis2/C web service). Click Next.
5. Summary of role features and services that will be installed is displayed. Click Install.
Upon successful installation, a new node named Web Server (IIS) should appear under Roles in Server Manager.
No restart is needed and IIS service will start running automatically. To test whether IIS works, type http://localhost/ in your browser. IIS7 Welcome picture(png) should appear.