Thanks for the $FILTER tip, I hadn't noticed that one before.
Maybe you did the same thing I did: I tried to access Windows
Update with all my normal filters on and found something was
causing an error on the page.
Here's my current conclusions about accessing Windows Update
with Windows 2000 through Proxomitron.
You don't need to put Windows update in your bypass list if:
And it appears that you can safely put the site wustat.windows.com
in your kill file without affecting Windows Update. The parameters
of the URL sent to this site look suspiciously like they are being
used to track user information.
I'll post this over on the proxlist group, although I'm a member, there
are too many messages to read there so I rarely do.