Hi,

Here you can get the latest binary of openvpn3 test Windows client with both wintun and tap-windows6 support.

https://ci.appveyor.com/project/openvpn/openvpn3/build/artifacts 

To use it with wintun, open admin command prompt and run:

> cli.exe -w profile.ovpn

To use tap-windows6, just omit "-w" switch.

Please note that this is a development tool first of all, not a client to be consumed by most of users. 

-Lev