If the settings on the client computer as reported in the SoH do not match the settings in the SHV on the server running NPS, it implies that the client computer is not compliant with the health policy requirements of the server. WSHV allows you to create a policy for the way in which settings on Network Access Protection (NAP)-capable client computers must be configured. For example, the Windows Security Health Validator (WSHV) is the counterpart to the Windows Security Health Agent (WSHA) on client computers. SHVs contain the details of the required configuration settings on client computers. SHVs allow NPS to verify the statement of health (SoH) that is made by its corresponding SHA on the client computer. Each SHA on the client has a corresponding SHV in Network Policy Server (NPS). System health validators (SHVs) in an NPS are server software counterparts to system health agents (SHAs) on NAP (Network Access Protection)-capable client computers.

NPS also functions as a health evaluation server for NAP (Network Access Protection). NPS (Network Policy Server) is the Microsoft implementation of a Remote Authentication Dial-in User Service (RADIUS) server, and as such, it performs connection authentication, authorization, and accounting for many types of network access, including wireless and virtual private network (VPN) connections.

Radius client is nap capable