how set up vpn over wirless using windows 2000/xp

I have a windows XP professional machine with a broadband connection
which I have networked to a windows 2000 machine using 2 wireless usb
adaptors in ad-hoc mode. The XP machine has internet connection
sharing enabled to alllow the 2000 machine to browse the internet
through it. The WEP encryption that the wireless adaptors has built in
is not very strong so I wanted to see if it is possible to set up a
VPN between the 2 machines using the VPN capabilites built into
windows, any ideas?

<(E-Mail Removed)> wrote in message > I have a windows XP
professional machine with a broadband connection
> which I have networked to a windows 2000 machine using 2 wireless usb
> adaptors in ad-hoc mode. The XP machine has internet connection
> sharing enabled to alllow the 2000 machine to browse the internet
> through it. The WEP encryption that the wireless adaptors has built in
> is not very strong so I wanted to see if it is possible to set up a
> VPN between the 2 machines using the VPN capabilites built into
> windows, any ideas?

Potential solutions:
1. Update NIC drivers to support WPA protocol (if available)
2. VPN server program running on winxp box.
3. Https secure proxy server program on winxp box.