wVerReq = MAKEWORD(1,1);//WinSockライブラリの要求Ver.1.1
　if(WSAStartup(wVerReq, &wsadata) != 0){printf("ライブラリ初期化失敗\n");return 1;}
　s = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
　if(s == INVALID_SOCKET) ErrorProccess(0, "socket()");
　memset(&addr, 0, sizeof(addr));
　addr.sin_family = AF_INET ;
　addr.sin_addr.s_addr = htonl(INADDR_ANY); // 全てのインターフェイスを許可
　addr.sin_port = htons(PORT_NO);
　ret = bind(s, (struct sockaddr *)&addr, sizeof(addr));
　if(ret == SOCKET_ERROR) ErrorProccess(s, "bind()");
　ret = listen(s, SOMAXCONN);
　if(ret == SOCKET_ERROR) ErrorProccess(s, "listen()");
　ret = sizeof(addrc);
　sc = accept(s, (struct sockaddr *) & addrc, &ret);
　if(sc == INVALID_SOCKET) ErrorProccess(s, "accept()");
　closesocket(s);
　printf("Cliant Address : %s\n", inet_ntoa(addrc.sin_addr));
　printf("Cliant Port : %hu\n\n", ntohs(addrc.sin_port));
　ret = send(sc, hello, (int)strlen(hello), 0);
　if(ret == SOCKET_ERROR) ErrorProccess(sc, "send()");