You may need to stop the IIS Admin Service when installing or updating the software. The IIS Admin Service is used to publish websites on the machine; to avoid web outages, stop the service at non-peak website times. This will affect all IIS-dependent services. In NetClassroom, you can think of restarting the IIS Admin Service as being used much like clearing the cache or refreshing the page, or pushing the information through to the web.
Click Start, Settings, Control Panel, Administrative Tools.
Right-click on the IIS Admin Service and select Stop, Start, or Restart.
Note: If you receive an error when manually stopping IIS, reboot the machine and attempt to manually stop IIS again.
From a command prompt:
Type NET STOP IISADMIN and press Enter.
Once the service has stopped, type NET START IISADMIN and press Enter.
Type NET START W3svc and press Enter.