Winrpe Free Edition is a 32-bit implementation of NRPE for Windows. You can configure nrpe.cfg according to your needs and make the service available. Free edition is limited to max 5 check commands. Version/License details are available here. Example use of Winrpe with Nagwin: Basic monitoring of Windows hosts via Winrpe
Check our product edition if you want unlimited check commands, 64-bit binaries, extended installer features and support.