IE 5.5 S2 and IE 6 security patch
I hope this is felt appropriate. http://www.microsoft.com/technet/treeview/default.asp?url=/technet/security/bulletin/MS01-058.asp
Microsoft posted this on 13th December but it doesn't show up in Windows Updates which I think would be a good idea.
It covers previously known vulnerabilities in Internet Explorer 5.5 S2 and IE 6 plus 3 very recent ones and is a critical security update for those who use them.
I was told today of it by someone who saw a CERT (?) announcement.
That was the first mention I had of it.