Disabling Microsoft-HTTPAPI/2.0

Established in Denver, and he fails to run because can't listen to 80 port. Seemingly trivial mistake... but no.
For starters fulfilled:
C:\\Windows\\system32>netstat-anbo -p tcp

Active connections

Proto Local address Foreign address State PID
TCP 0.0.0.0:80 0.0.0.0:0 LISTENING 4
Cannot obtain information about the owner

Looked in the DMZ is the 4th PID is NT Kernel. That is not skype, not teamviewer and other programs.
Then I noticed that calls to localhost returns a 404 error, that is, someone real is listening and responding here. Looked through Firebug and I saw this:

HTTP/1.1 404 Not Found
Content-Type: text/html; charset=us-ascii
Server: Microsoft-HTTPAPI/2.0
Date: Thu, 09 Sep 2010 18:54:57 GMT
Connection: close
Content-Length: 315

Googled. Basically suggest in different variations to either disable IIS, or MS SQL Server. First I removed the second initially had.
Actually, the question is: what is it like to remove/disable?

Attention: SQL Server a I have no in any way, so no need to advise me to configure it.