Windows Firewall update available

in addition to the critical updates related to the recently released
security bulletins, windowsupdate.microsoft.com it telling me there is
another critical update available for my XP SP2 system.  the "Details" link
pops up a window with the following info:
===
Critical Update for Windows XP (KB886185)
Date last published: 12/14/2004
Download size: 384 KB
This update helps narrow the definition of the My network, or local subnet,
restriction option in the Windows Firewall. This is helpful in situations
where the Windows Firewall would consider a large network to be on the
local subnet because of how the dial-up software configured the route
tables. After you install this item, you may have to restart your computer.
System Requirements
Recommended CPU: Not specified.
Recommended memory: Not specified.
Recommended hard disk space: Not specified.
How to Uninstall
This software update can be removed via Add or Remove Programs in Control
Panel.
Help and support
http://go.microsoft.com/fwlink/?linkid=36671&clcid=0x409
===
KB article 886185 doesn't appear to be available, yet, so that's all the
information available.

cheers,
marc

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