I'm running Windows Server 2008 R2 Enterprise, and when I install Web Server IIS it doesn't install properly and gives the following error: "The World Wide Web Publishing Service (WWW Service) did not register the URL prefix http://*:80/ for site 1. The site has been disabled. The data field contains the error number.". Any suggestions as to what the problem is?

do you have another application running on that server listening on port 80..maybe another web application such as apache?

Nope, already checked

From administrative command prompt type:

net stop http

In regedit browse to
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\HTTP\Parameters\ListenOnlyList

If an IP address is listed in the ListenOnly List, change the IP address to 0.0.0.0

Shutdown, then start server.

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