If you're going to apply that patch, I'd also recommend looking at KB
Q168747:
http://premium.microsoft.com/support/kb/articles/q168/7/47.asp
which has links to fixes for both platforms for an OOB attack.
(Despite the URL prefix, I'm told that these are freely available even if
you haven't paid for premium suuport. There's no way I can verify that for
sure, however. I was able to access them without any problem -- but what
does that prove? :-)
I'd suggest applying both to any Windows 95 or Windows NT machine attached
to an IP network from which such attacks might originate.
In the future when reporting IP attacks, it would be quite useful to mention
that they work even when these fixes are applied -- otherwise we'll reply
asking if they have been, and suggesting that they be applied if not.
I.e, if you've really found a new problem, it will reduce the time to fix it
if you tell us up front you're reporting an exploit that works even with the
latest fixes.