In order for your Dynamic server to be able to support a local Windows VPN, a number of back-end network configurations need to be made by our server team. You may request these via our support site or your account manager:

i) VPN option to be enabled on the backend adapter of the virtual server congfiguration

ii) An additional NIC needs to be added becuase a VPN requires 2 NIC's. This will be setup with a internal IP range, such as 172.1.1.1.

Once these steps are complete you can carry out the normal setup of a Windows VPN.  A useful guide can be found: http://articles.techrepublic.com.com/5100-10878_11-5805260.html