Windows XP Machine VPN to a PFSENSE machine

[nambi]

I have successfully created my VPN between my PfSense network and my watchguard remote network.  I now need to setup mobile users (laptop users) to VPN into the PFSense network.

Do I need to install a client onto the lasptops for this? or does winXP have these features built in? Would I need to install OPENVPN on the PFsense machine?

Thanks

[Cry Havok]

pfSense, as of at least 1.2.0, has OpenVPN server built in, and PPTP and IPsec.

Windows has PPTP built in, anything else will require a client to be installed.