ICS (Internet Connection Sharing) lets you split an Internet connection among several networked PC's without having to buy separate router hardware. The PC with the Internet connection must be turned on before the other computers on the network can access the connection and a second network card must be installed on the host computer. To enable ICS, click on the Start button, point to 'Settings', then click on 'Network And Dial-Up Connections'. Right-click on the 'Local Area Connection' entry that corresponds to the network card where the Internet connection comes into your computer. Click on 'Properties', Select the 'Sharing' tab, and check the 'Enable Internet Connection Sharing For This Connection' checkbox.