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I've recently set up a home server and spent some time working on the security. One of the tools I've been using nmap which I pointed at my Windows 7 desktop. It showed an unknown service on port 10243. When I connected to the port with netcat it identified itself as Server: Microsoft-HTTPAPI/2.0?

Anyone know what this is or how I can find out? I've tried browsing it in firefox but nothing comes up.

[root@laptop]# nc 10243

HTTP/1.1 400 Bad Request
Content-Type: text/html; charset=us-ascii
Server: Microsoft-HTTPAPI/2.0
Date: Fri, 25 Jan 2013 19:28:53 GMT
Connection: close
Content-Length: 326

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN""http://www.w3.org/TR/html4/strict.dtd">
<META HTTP-EQUIV="Content-Type" Content="text/html; charset=us-ascii"></HEAD>
<BODY><h2>Bad Request - Invalid Verb</h2>
<hr><p>HTTP Error 400. The request verb is invalid.</p>

share|improve this question
Do a "netstat -b" on the problem machine (or use TCPView from Sysinternals) to see what program is listening on that port. –  Brian Jan 25 '13 at 20:41
@Brian Thanks. TCPView show Process=System Pid=4 but cant get any process information? –  James Jan 26 '13 at 0:21

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