C / C++ / MFC

WSADATA WS2Info;
if (!WSAStartup(MAKEWORD(2,2), &WS2Info))
{
    MessageBox(g_hWindow, L"WinSock2 Initialized", L"Tracing", NULL);

    // IPv4
    SOCKET IPv4 = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    if (IPv4 != INVALID_SOCKET)
    {
        hostent *ResolveHost;
        char *HostName = new char[wcslen(Download->HostName)];
        wctomb( HostName, (wchar_t)Download->HostName);
        ResolveHost = gethostbyname(HostName);

        MessageBox(g_hWindow, L"Resolving Host", L"Tracing", NULL);

        if (ResolveHost)
        {
            MessageBox(g_hWindow, L"Connecting", L"Tracing", NULL);
            SOCKADDR_IN Host;
            Host.sin_family = AF_INET;
            Host.sin_addr.s_addr = (ULONG)ResolveHost->h_addr_list[0];
            if (Download->ConnectionProtocol == Download->HTTP)
                Host.sin_port = htons(80);

            if (!connect(IPv4, (SOCKADDR*) &Host, sizeof(Host)))
            {
                MessageBox(g_hWindow, L"Connected", L"Tracing", NULL);

                char *HostFileLocation = new char[wcslen(Download->HostFileLocation)];
                wctomb(HostFileLocation, (wchar_t)Download->HostFileLocation);
                char TCPsend[DEFAULT_BUFLEN];
                sprintf(TCPsend,"GET %s\r\n\r\n",HostFileLocation);
                send(IPv4,TCPsend,strlen(TCPsend),0);

                TotalBytesToDownload += Download->BytesToDownload;
                TotalBytesDownloaded += Download->BytesDownloaded;

                ofstream DownloadFile ( Download->FileName, std::ios::out );

                int ReceivedBytes = 0;
                char TCPrecv[DEFAULT_BUFLEN];
                do
                {

                    MessageBox(g_hWindow, L"Downloading", L"Tracing", NULL);

                    ReceivedBytes = recv(IPv4, TCPrecv, DEFAULT_BUFLEN, 0);

                    TotalBytesDownloaded += ReceivedBytes;
                    Download->BytesDownloaded += ReceivedBytes;

                    DownloadFile << TCPrecv;
                }
                while (ReceivedBytes && Download->DownloadState == Download->ACTIVE);

                DownloadFile.close();

                MessageBox(g_hWindow, L"Download Finished", L"Tracing", NULL);

                closesocket(IPv4);
            }
        }
    }
}
WSACleanup();