VPN with quarantine: hox to check state of security center in win xp ?

Hi !

playing with this nice VPN-qurantaine, i would see the most use in it if i
could check the states the security of XP SP2 has discoverd
- are windows update configured ?
- is the firewall up ?
- is the antivirus running and up to date ?

the security center know all this, and i could get the information into the
vpn-skript (a .cmd), that would be great. microsoft itselfs uses example
script where it tells you to check that, but not how.

i could get the firewall state i.e. with netsh.. but there must be a simpler
way ?

any links, expirence, tips, how-too´s ??

cu
ralf