Current OpenVPN version (
git) requires a TAP-Windows driver that is at least version 9.20:
This version of OpenVPN requires a TAP-Windows driver that is at least version 9.20 -- If you recently upgraded your OpenVPN distribution, a reboot is probably required at this point to get Windows to see the new driver.
The source files of the driver are
available but they obviously lack of a signing certificate.
So, where can a user get that signed TAP driver?