Shared Internet Connections

First, you need to establish a network betwen the 2 PCs.
This could be just a network card in each with a crossover cable connecting them.
Other options include phone line networking so you don't need to run new wires.
( www.homepna.org for more info)
Or wireless network systems.

Then, for the PC with the modem, enable ICS (internet connection sharing).
You will probalbly need to go to control panel, add/remove programs, then click on the Windows components tab and check to install ICS.

I would get the network between the 2 machines working first. Then enable ICS.
DO NOT ENABLE ICS ON THE PC WITHOUT THE MODEM!!!
This can cause the 2 PCs to think that the other PC has the connection.

Answer #1 makes one assumption: That is that your Win98 machine is actually Win98SE (which has ICS).

If you have Win98 (original), then you will need a slightly different approach.

1. As before, establish a network connection between the twoPCs.
2. On the PC with the modem, setup a connection sharing program, such as SyGate or WinProxy.
3. You will need to read the directions for whatever software you use, but you would basicly tell the second PC to proxy thru the first one.

Hope this helps