Install a modem or a network adapter (if you have a direct
network connection to the Internet).
You can use the Internet Connection Wizard to help you sign up
with an ISP if you need to and configure your connection to the
Internet. Or
Make sure
TCP/IP and Dial-Up Networking are installed, and make sure
TCP/IP is bound to the Microsoft Dial-Up adapter or a network
adapter.
Define a Dial-Up Networking connection to an Internet Service
Provider, and define IP address information for each connection,
or for your network adapter, if required.