1. Start Registry Editor (Regedit.exe).
2. Locate and click the following key in the registry:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
3. Set the following registry values:
Value Name: IPEnableRouter Value type: REG_DWORD Value Data: 1
NOTE: A value of 1 turns on (enables) TCP/IP forwarding for all network connections installed and used by this computer.
4. Quit Registry Editor.