Hi,
Use the following APIs to create/receive packets thru sockets:
socket()
ioctlsocket()
bind()
recv()
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winsock/winsock/socket_2.asp
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winsock/winsock/ioctlsocket_2.asp
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winsock/winsock/bind_2.asp
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winsock/winsock/recv_2.asp
Hope these suggestions helps,
Kellie.