Detecting antivirus presence on Windows XP

[ainner]

I'd like to be able to display a warning if a laptop connecting to my network doesn't have an antivirus installed.

I know that microsoft security center does detect antivirus but I don't know where to find the information (In the registry most likely)

I cheked [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center] without any success.

Any ideas ? Thx

[Jos]

this works for me.

$oWMI = ObjGet("winmgmts:{impersonationLevel=impersonate}!\\" & @ComputerName & "\root\SecurityCenter")
$colItems = $oWMI.ExecQuery("Select * from AntiVirusProduct"); "from FirewallProduct" works as well

For $objAntiVirusProduct In $colItems
      MsgBox(0, "AntiVirusProduct", $objAntiVirusProduct.displayName)
Next

[weaponx]

This method doesn't work the same in Vista as far as I know.