What VPN clients are available for free to use with Vista, other than the built in one?

Whats wrong with the built in one?

Openvpn

Quote from: CypherWhats wrong with the built in one?

Doesnt work, whereas the exact same details work on an XP machine.

There is no reason it should not work.  I connect to various operating systems such as SBS 2003, Server 2000 etc using VBista Buisness on a regular basis.  Using the exact same settings.

What are you trying to connect to?  My immediate thought is patches/updates for Vista clients to allow you to connect.  For example before the updates came out, a Vista machine could not communicate with a 2003 server.