Check_winprocess

Hi, im using Nagios XI and i need to do a passive checks from a windows 7 host.

To do that i use NRDS client, now i need to check if some process exist or not, for example "CMD.exe" and if exist say "OK" and if not say "Critical"

Can anyoone explain me what i have to type to do that?

that is my example and dosent work...

command[process_CMD]= .\plugins\check_winprocess.exe --filter "imagename eq cmd.exe" --compare le --critical 0

Thx a lot