As long as one incomming connection is sufficient, W2K pro should be fine.
Configure W2K just as you normally would. It should have a static IP address on the same subnet as the rest of your network.
Add a user to the system to serve as the user for VPN access. You can configure as many users as you like if you want to give each of your remote users their own user/password combination.
Configuring the server is fairly simple. Start the New Connection Wizard (Start-->Settings-->Networking and Dial-up Connections-->New Connection).
Click Next on the first pane, select "Allow Incoming Connections" and click Next.
Do not mark any devices on the next pane (Devices for incoming connection) and press Next.
Mark the box for "Allow Virtual Private Connections" and press Next.
Mark the users you wish to allow to access the connection. As a general rule, Administrator and Guest should be disabled for security reasons. Click Next.
Highlight TCP/IP and click Properties. On the box that pops up, mark "Allow callers to access my LAN". Mark the box for specify TCP/IP addresses and assign a range of 5 addresses in the from and to boxes. These address must not be used by any other device on the network. Click OK. Make sure that at least TCP/IP is marked on the Networking Components page and click Next.
Type a name for the connection and click Finish. As the button would indicate, you are finished (at least with the server).
On your router, you will need to:
Enable PPTP passthrough
Forward port 1723 to the IP address of the server
Exclude the addresses assigned to the VPN server from the DHCP server (if you are using DHCP to assign addresses).
If your ISP assigns you a static public IP address, you will be able to connect using the IP. If you do not have a static public IP, you will need to use a dynamic dns service (such as
to allow your users to connect. The router will need to be configured to update your IP address with this service.
Your print servers will need to have their default gateway set to the VPN server to provide a route back to the VPN clients.
That really should do it. If you already have the W2K system, best just to dig into it and ask questions as they come about.