The Wireless Network Application Interface (WNAI) Windows driver is a type of software component that facilitates communication between the operating system (Windows) and the hardware of a wireless network device, such as a Wi-Fi adapter, in a more advanced or specialized manner than typical network drivers. WNAI is often part of the driver package for wireless network cards and allows for enhanced or specialized management of wireless connections, often enabling features like security configuration, network management, or performance monitoring.

In some cases, it may also be referred to as a utility or a set of APIs (Application Programming Interfaces) that help applications and the operating system interact with the wireless network device for managing Wi-Fi connections.