Go to Control Panel (double-click My Computer, then select Control Panel), and
and double-click the Add/Remove Programs icon, then click on the Windows Setup tab.
Scroll through the list until you see Communications, and highlight it as shown below:

Click the Details button, and check the box for Dial-Up Networking:

Once you click OK, Windows will prompt you for your installation diskettes/CD-ROM. Dial-Up Networking will then be installed, and a new folder added to your Control Panel folder. Ignore this folder for now.
You are now ready to Configure Your Network Settings.