Win7 system accidentally deleted winsock how to recover?

Winsock is the specification for network programming under Windows - Windows Sockets is a widely used, open, multi-protocol network programming interface under Windows. WinSock2 is equivalent to an interface between the connection system and the software you use. Perhaps this function is to repair the correct communication between the software and the system.
How to restore winsock?
1. Can be added in the network protocol, routing c: windowsinf find 1394 look at the picture;

2. Next is to put 4 and 6 (tcp/Ivv) increase it;

3. Finally, if you want to start the winsock service, you can go online!