Re: Local Network
Straight from Microsoft "Help & Support"
Click to open Network Connections.
Right-click the connection that you want to share, and then click Properties. If you are prompted for an administrator password or confirmation, type the password or provide confirmation.
Click the Sharing tab, and then select the Allow other network users to connect through this computerís Internet connection check box.
The Sharing tab will not be available if you have only one network connection.