How to use the Alternate Configuration functionality to establish multiple-network connectivity

If you want to use your laptop on both office and home networks without having to manually reconfigure TCP/IP settings and one of those networks does not have a DHCP server, you may be able to do this by using the XP Alternate Configuration functionality. For example, when you are in the office, the computer uses a DHCP to assign TCP/IP configuration. When you are at home (where you do not have access to a DHCP server), the computer automatically uses the alternative configuration. To do this, go to Control Panel>Network and Internet Connections>Network Connections, right-click the connection that you want to configure and clickProperties. Click Internet Protocol (TCP/IP)>Properties>Alternate Configuration, and assign IP, default gateway and DNS manually.