disabling the security status window from appearing on logon

We are installing Windows XP Service Pack 2 and have written a small
script to deal with how XP will behave after the XPSP2 has installed.

Everything is working fine appart from the fact every time a (new or
old) user logs on for the first time they receive a Windows Security
Status message. We would like to remove this.

We have unticked the boxes in 'Change the way Security Center alerts
me', ie the 3 tick boxes for AV, AU & Firewall and we do not receive
messages saying you do not have your Firewall switched on, etc however
the Windows Security Status Window appears only once when a user, be it
new or old, logs on.

We have set group policies to control the firewall and to turn off
automatic updates. We have 400 computer in a Novell environment so we
do not use Active Directory.

I have read disabling the wscsvc service would work but then this seems
to be a big change just to remove this one security status window.

Please any suggestions would be very helpful.