WSASocketW

SOCKET WSASocketW(
       int  af,
       int  type,
       int  protocol,
       void *  lpProtocolInfo,
       uint  g,
       DWORD dwFlags
   )

Create a socket with extended options.

`af`	Address family (AF_INET, AF_INET6, etc.).
`type`	Socket type (SOCK_STREAM, SOCK_DGRAM, etc.).
`protocol`	Protocol (IPPROTO_TCP, IPPROTO_UDP, etc.).
`lpProtocolInfo`	Protocol info structure (usually null).
`g`	Socket group (usually 0).
`dwFlags`	Flags (e.g., WSA_FLAG_OVERLAPPED).

Socket descriptor, or INVALID_SOCKET on failure.