Querying NIC power Options

Hi,

I am trying to find a way to query and then modify NIC power management settings.

I found an article on technet that has the info 

https://technet.microsoft.com/en-us/library/ee617165(v=ws.10).aspx

They are saying that I need to use the following WMI API methods, yet no mansion of what namespace  or class they belong too...

• GUID_NDIS_PM_ADMIN_CONFIG
  
• GUID_NDIS_PM_CAPABILITIES

Please help me figure out the answer.

Thank you