Internet Information Services (IIS) Web sites that use HTTP rely on several important IIS components for their availability. The Windows Process Activation Service (WAS), the World Wide Publishing Service (W3SVC), the HTTP service, all must be running correctly. In addition, a properly running application pool must be available for the Web site’s applications. If any of these components is not functioning, the Web site will not be available.
Stop and restart the HTTP service
Stopping the HTTP service will shut down the World Wide Web Publishing Service (W3SVC). All Web traffic to the server will stop while these services are down.
To stop and restart the HTTP service:
Open an elevated Command Prompt window. Click Start, point to All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator.
Type net stop HTTP /y.
Type net start w3svc. This will also start the HTTP service.
Start any other services that were stopped when HTTP and W3SVC were shut down.