The TeamViewer VPN Adapter is a virtual network adapter that is installed as part of the TeamViewer software when you enable the VPN feature. TeamViewer itself is primarily a remote desktop software, but it also includes the ability to create a Virtual Private Network (VPN) between computers, which can be useful for securely accessing remote machines or networks.

The TeamViewer VPN Adapter is a virtual network interface that allows for the secure tunneling of network traffic between devices over the internet. It works by creating a network bridge between your local machine and the remote system, allowing you to send data securely over the connection, similar to how a typical VPN works.