How to set up a Windows 98 PC to use DHCP
In the Windows 'Start' menu, select 'Settings' > 'Control Panel' > 'Network'. On the 'Configuration' tab, select the TCP/IP protocol and click on the 'Properties' button.
On the 'IP Address' tab, check the checkbox 'Obtain an IP address automatically'. Then click on the 'OK' button.
Your PC will now use DHCP to obtain an IP address. Click 'OK' to apply the changes.