NIC reports type incorrectly?

Is there a better way than AdapterType / AdapterTypeId to identify a
NICs type? I am trying to distinguish between wired and wireless (802.3
and 802.11) NICs on a system, but some seem to report themselves
incorrectly to WMI. Specificly, when I run a script generated with
Scriptomatic on an HP/Compaq nc6000 I get this:

AdapterType: Ethernet 802.3
AdapterTypeId: 0
AutoSense:
Availability: 3
Caption: [00000013] HP WLAN 802.11a/b/g W500
ConfigManagerErrorCode: 0
ConfigManagerUserConfig: False
CreationClassName: Win32_NetworkAdapter
Description: HP WLAN 802.11a/b/g W500
DeviceID: 13
ErrorCleared:
ErrorDescription:
Index: 13

Installed: True
LastErrorCode:
MACAddress: 00:11:0A:81:EA:28
Manufacturer: HP
MaxNumberControlled: 0
MaxSpeed:
Name: HP WLAN 802.11a/b/g W500
NetConnectionID: Wireless Network Connection
NetConnectionStatus: 7
NetworkAddresses:
PermanentAddress:
PNPDeviceID:
PCI\VEN_168C&DEV_0013&SUBSYS_00E50E11&REV_01\4&39A85202&0&20F0
PowerManagementCapabilities:
PowerManagementSupported: False
ProductName: HP WLAN 802.11a/b/g W500
ServiceName: WLAN_400_500_SERVICE
Speed:
Status:
StatusInfo:
SystemCreationClassName: Win32_ComputerSystem
SystemName: [removed]

TimeOfLastReset: 9/22/2005 1:13:35 PM

As you can see, this is pretty contradictory. I know there has to be a
way to tell for sure (without grepping the name for stuff like "WLAN"
etc..) because Windows needs to determine whether to use wired or
wireless logic on it. So what's the deal guys?

.

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