Windows Update KB896424 - Breaks IE Security Zones!!!!

[()z]

http://support.microsoft.com/Default.aspx?kbid=896424

I had a weird problem this morning. I have been working on an IE
application, and this application opens windows (using window.open())
without a status bar, but this morning these windows opened with status
bars.

After a bit of testing and head scratching, I realised that my intranet
based website was being shown as in the Internet zone according to the
status bar.

Off to Tools, Options, Security, Local Intranet, Sites, Advanced I go,
and my list is empty.

Humm, the security update wiped all my zones (I thought). So I added
my intranet URL back, OK'd everything... but the browser still shows it
as in the internet zone. So I go back into the sites dialog, and the
URL I had added is not there. I try and add it again, but I get a
message saying it is already in another zone.

As I knew there had been a windows update last night, I went to
add-remove programs and removed update KB896424, rebooted.

I can now add URL's back into my Local Intranet zone, and my
application is now working again. The *ONLY* thing I did to get this
working again is uninstall this update and it only started happend
after this update arrived, so it is almost certainly the culprit.

So beware.

 

[()z]

Solved. Disabling my virus scanner and then installing this update
avoided the problem.