re: Xbox Live

Do this...you basically ctrl + click (to multi select) both network connections, then select Bridge Connections. Then use a CAT5 (ethernet cable) from your Xbox to your laptop, and it will use the laptops wireless connection to get online. After it bridges, give it about 1/2 minute for the connection to reset before the laptop gets internet.

Create a network bridge

A network bridge is software or hardware that connects two or more networks so that they can communicate. You can create only one network bridge on a computer, but one bridge can handle any number of network connections.

1.

Open Network Connections by clicking the Start button Picture of the Start button, clicking Control Panel, clicking Network and Internet, clicking Network and Sharing Center, and then clicking Manage network connections.
2.

Hold down CTRL and select each network connection that you want to add to the bridge.
3.

Right-click one of the selected network connections, and then click Bridge Connections. Administrator permission required If you are prompted for an administrator password or confirmation, type the password or provide confirmation.