For Windows 98
1.Click on the Start menu, point to Settings and click on Control Panel.
2.
3.The Network window appears. On the Configuration tab, check out the list of installed network components.
Option 1: If you have no TCP/IP protocol, click Add.
Option 2: If you have TCP/IP protocol, go to Step 6
Your network interface card.
Check out if TCP/IP for your NIC is installed or not.
4.Highlight Protocol and click Add.