Removing network

Windows 9X/Me will not allow you to have a network card in the PC without installing some of the network components.

XP will, so long as you are not connected to a network.

To remove network components,
Go to Control Panel / Networking.
Select the protocals that you want to remove, and click on remove / delete.

For most Dial-up connections, you need:
Dial-Up Networking
TCP/IP
1 or more logon protocals.
(Depends on the ISP, for W98 and my ISP, I use client for microsoft networks)
If on re-boot, Windows requests installing other network protocals, go to device manager, and remove the card.
Then, shut down and physically remove the NIC.

Chas

If you client PC rely on the proxy then you will need you Ethernet configuration on the PC. Since the Proxy server dials the connection to the ISP all you need to do is to make the gateway IP address on you client PCs to be that of the Proxy server's Internal IP.

What you then have is that the gateway IP addresses on the client PC becomes the InternalIP address of the Proxy server. The client PCs use the IP address of the Proxy server as their gateway of last resort to connect to the Internet.

Clint PC => Gateway address = Internal IP address of the Proxy server => All Internet request goes through the Proxy server to the Internet.