Windows typically uses (a variant from the OpenVPN project) which supports both modes, but is commonly configured as a virtual Ethernet adapter for VPN tunneling.

Tap adapter windows are specialized windows designed to provide a secure and watertight seal around pipes, ducts, and other penetrations through walls, floors, or roofs. They are typically used in commercial and industrial buildings, as well as in residential construction.

Some VPNs (like NordVPN) recreate TAP adapters automatically on next launch.

A adapter, more accurately called a TUN/TAP virtual network interface , is a software-emulated network device that allows user-space programs (like VPN clients) to intercept and inject raw network packets directly into the operating system's network stack. In Windows, it appears as a standard network adapter in the Network Connections control panel.

There are several types of tap adapter windows available, including:

In the quiet suburbs of a digital desktop, among the sprawling folders and bustling shortcuts, lived a humble driver named .