How to set up a home powerline network in Windows XP?

1. Insert the CD that comes with your HomePlug adapter into each PC that will be networked to install the necessary software and copy the device driver before plugging the adapter into a PC USB or Ethernet (RJ45) port for the first time.
2. Assuming a wall mounted USB or Ethernet HomePlug adapter is used, plug the USB or Ethernet cable ends to a USB or Ethernet port on the adapter and on each computer that will be networked. Plug the power prongs of your HomePlug adapter to an AC wall power outlet. 
3. Windows XP will detect the new hardware and the Found New Hardware Wizard appears. Follow the instructions in the wizard to install your HomePlug adapter driver.
4. If you have installed your HomePlug adapter driver correctly, it will appear on the Device Manager under "Network adapters" and a Local Area Connection will be created on the Network Connections folder under LAN or High-Speed Internet.

5. If you already have an Internet connection on one computer running Windows XP and other computers will connect to the Internet through it, run the Network Setup Wizard on this computer first (i.e. the ICS host). 
6. Follow the instructions in the wizard to name your computer and your workgroup, share the Internet connection, and turn on/off file and printer sharing. You must insert a blank formatted floppy disk when prompted if you have computers running Windows 98, 98 SE, or ME and want to connect those computers to your home powerline network.
7. Insert the floppy disk on computers running Windows 98, 98 SE, or ME. Double-click a file named "netsetup" to run the Network Setup Wizard on each computer.
8. If you have completed the network setup, you can check whether your HomePlug network has been working from My Network Places. Under Network Task, click "View workgroup computers". On the right pane, you will see all connected computers - each with a name that you have assigned to it through the Network Setup Wizard.
9. If you turn on file and printer sharing in the Network Setup Wizard and have specified shared folders or printer, when you double-click a computer name you will see shared folders or printer on that computer.

10. To connect to the Internet, go to the ICS host (i.e. the computer with direct Internet connection). Double-click the Internet connection icon in the right-pane of Network Connections folder. Type in your user name and password and click Dial. If your ICS host has an always-on broadband Internet connection using DSL or cable modem, you are on the Internet as soon as you turn it on.
11. On other computers that will connect to the Internet through the ICS host, just open an Internet browser, type in your favorite web address in the address bar and you are ready to surf the Internet. You can do any Internet activity independent of the ICS host as long as the ICS host is on.
12. If you use a broadband router (a.k.a. residential gateway) to connect to the Internet, you must use a router which supports HomePlug. If your router doesn't have a HomePlug interface, put a HomePlug-to-Ethernet bridge between your router and one available wall power jack. Connect the bridge to the router's Ethernet socket and to the power jack. On every computer, choose "This computer connects to the Internet through another computer or residential gateway" in the Network Setup Wizard.
13. If you have an existing LAN using other technology (e.g. Ethernet or Wi-Fi), you can use a network bridge to connect your HomePlug network to this network. You can create a (software) bridge on Windows XP from the Network Setup Wizard or manually via Network Connections folder.