Internet Explorer using LoopBack

From: Speight, Howard F (SPEIGHTH@MAIL.ECU.EDU)
Date: 09/18/02 

From: "Speight, Howard F" <SPEIGHTH@MAIL.ECU.EDU>
To: "'focus-ms@securityfocus.com'" <focus-ms@securityfocus.com>
Date: Wed, 18 Sep 2002 10:45:06 -0400

Anyone know why IE opens a UDP port on the loopback IP? Has it always done
this?

Proto Local Address Foreign Address State
UDP 127.0.0.1:1512 *:*

Pid Process Port Proto Path
740 iexplore -> 1512 UDP C:\Program Files\Internet
Explorer\iexplore.exe

Thanks, Howard

FYI: I did a google search "internet explorer loopback" and didn't get much
back (that I could read) and also searched on Bugtraq with no matches...