This is a sketch article in which I want to do a brief description of how to install a Windows WMI proxy and do the checks via WMI in your windows network.
The WMI Proxy is basically a Windows Server / Workstation that has NRPE_NT or NSClient++ (you need to change a bit the configurations) installed and from which with an administrative user can do checks to the windows network via the WMI.
WMI is also used as a check for some other products including but not limited to: SCCM, SCOM, Spiceworks, etc.