Is it possible to connect to OpenVPN on Windows, without a 3rd-party client?

The title says it all. Is it possible to connect to OpenVPN from Windows 7, without using a 3rd party VPN client? Can I use the native Windows VPN functionality alone?


The openvpn protocol is a custom protocol, not a standard like ISAKMP/IPSec, so no you need an openvpn capable client to connect and Windows does not have one built in.