C / C++ / MFC

SOCKET sock = socket(AF_NETBIOS, SOCK_DGRAM, 0);

void main()
{
	WSADATA sockdata;
	WORD wVersionRequested = MAKEWORD(2, 2);

	int stat = WSAStartup(wVersionRequested,&sockdata);
	if(stat != 0)
	{
		printf("Error initializing winsock\r\n");
		return;
	}

	SOCKET sock = socket(AF_NETBIOS, SOCK_DGRAM, 0);
	DWORD errcode = WSAGetLastError();

	if(sock != INVALID_SOCKET)
	{
		closesocket(sock);
		printf("Success\r\n");
	}
	else
	{
		printf("\r\nError: %d\r\n",errcode);
	}
	WSACleanup();
}