Blank DNS Suffix Search Order from WMI

I am trying to get all the ipconfig info from hundreds of servers to compare
the settings. The servers are all Windows 2000 or 2003.

For 99% of the servers, all of the information is returned EXCEPT the DNS
Suffix Search Order. Only a few servers actually return the it.

I am using vbscript to query WMI:

Set objWMIService = GetObject("winmgmts:" _
& "{impersonationLevel=impersonate}!\\" & sComputer & "\root\cimv2")
Set colAdapters = objWMIService.ExecQuery _
("SELECT * FROM Win32_NetworkAdapterConfiguration WHERE IPEnabled =
True")

Then this is empty: objAdapter.DNSDomainSuffixSearchOrder

So I had the script have a backup plan, if it is empty, then query the
registry:

Set oReg = GetObject("winmgmts:{impersonationLevel=impersonat e}!\\" &
sComputer & "\root\default:StdRegProv")
sKeyPath = "SYSTEM\ControlSet001\Services\Tcpip\Parameter s"
sValueName = "SearchList"
oReg.GetStringValue HKEY_LOCAL_MACHINE, sKeyPath, sValueName, sValue

That also comes back empty.

But if I go to the server and do ipconfig /all, there are definately several
DNS Suffixes in the search order.

So where else is that information kept?

Thanks in advanced for any help.