【mql4】wininet.dllを使って、gasのpost通信をしたい

wininet.dllを使って、gasのpost通信をしたいです。

gasの方は、htmlファイルで確認して、post通信できていました。
そもそも、mt4からの通信は行ってないです。

エラーは、「ページが見つかりません」となっています。
詳しくは以下の通りです。

error
<!DOCTYPE html><html lang="ja">
<head>
<meta name="description" content="ウェブ ワープロ、プレゼンテーション、スプレッドシート">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=0">
<link rel="shortcut icon" href="//docs.google.com/favicon.ico">
<title>ページが見つかりません</title>
<meta name="referrer" content="origin">
<link href="//fonts.googleapis.com/css?family=Product+Sans" rel="stylesheet" type="text/css" nonce="UhiRvDbc7RMIj55gUC_5gw"><style nonce="UhiRvDbc7RMIj55gUC_5gw">
/* Copyright 2022 Google Inc. All Rights Reserved. */
...

mql4
#property strict
#property indicator_chart_window


#import "wininet.dll"
   #define INTERNET_OPEN_TYPE_DIRECT   0
   #define AGENT                       "MetaTrader 5 Terminal ss Auth 2022"
   #define READURL_BUFFER_SIZE         100000
   
   #define INTERNET_DEFAULT_HTTPS_PORT 443
   #define INTERNET_DEFAULT_HTTP_PORT  80
   #define INTERNET_SERVICE_HTTP       3
   #define INTERNET_FLAG_RELOAD        -2147483648

   int InternetOpenW( string sAgent, int lAccessType, string sProxyName="", string sProxyBypass="", int lFlags=0 );
   int InternetOpenA( string lpszAgent, int dwAccessType, string lpszProxy, string lpszProxyBypass , int dwFlags);
   int InternetOpenUrlW( int hInternetSession, string sUrl, string sHeaders="", int lHeadersLength=0, int lFlags=0, int lContext=0 );
   int InternetConnectW( int iHandle, string, int, string, string, int, int, int );
   int InternetReadFile( int, uchar &arr[], int, int &arr[] );
   int InternetCloseHandle( int hInet );
   
   int  HttpOpenRequestW( int iConnect, string lpszVerb, string lpszObjectName, string lpszVersion, string lpszReferrer, string lplpszAcceptTypes, int dwFlags, int dwContext );
   bool HttpSendRequestW( int iRequest, string& lpszHeaders, int dwHeadersLength, uchar& lpOptional[], int dwOptionalLength );
#import


//https://script.google.com/macros/s/AKfycbwn9nAniZRpsheIzHcSsjO8Q01NW61pjzIMwRN4TxorC-m3k8LqGdfr65egboaN-Bh35A/exec
string post_request()
{
   int      lReturn[1];
   uchar    arrReceive[];
   uchar    data[];
   
   //string   strUrl      = "https://script.google.com";
   //string   header      = "Content-Type: text/plain;charset=utf-8";
   //string   header      = "Content-Type: application/x-www-form-urlencoded";
   string   header      = "Content-Type: application/json";
   string   domain      = "script.google.com";
   string   methods     = "POST";
   string   http_type   = "HTTP/1.1";
   string   request_url = "macros/s/AKfycbwn9nAniZRpsheIzHcSsjO8Q01NW61pjzIMwRN4TxorC-m3k8LqGdfr65egboaN-Bh35A/exec";
   string   mydata      = "{\"value\": \"AAA\"}";
   
   
   StringToCharArray( mydata, data );
   
   int hSession = InternetOpenW( AGENT, INTERNET_OPEN_TYPE_DIRECT, "0", "0", 0 );
   int hConnect = InternetConnectW( hSession, domain, INTERNET_DEFAULT_HTTPS_PORT, NULL, NULL, 2, 0, 0 );
   int hRequest = HttpOpenRequestW( hConnect, methods, request_url, http_type, NULL, NULL, INTERNET_FLAG_RELOAD, 0 );
   bool check   = HttpSendRequestW( hRequest, header, StringLen( header ), data, ArraySize( data ) - 1 );
   if( !check )
      Alert( "check : ", check );
   
   Alert( "mydata : ", mydata );
   
   ArrayResize( arrReceive, READURL_BUFFER_SIZE + 1 );
   int success = InternetReadFile( hRequest, arrReceive, READURL_BUFFER_SIZE, lReturn );
   string errmes = "Authentication failure - Error connecting to server : by ss";
   if( success == 0 ){
      InternetCloseHandle( hSession );
      //return errmes;
   }
   
   string strThisRead = CharArrayToString( arrReceive, 0, ArraySize( arrReceive ), CP_UTF8 );
   InternetCloseHandle( hSession );
   
   Alert( strThisRead );
   
   return "ok";
}
int OnInit()
{
   Alert( post_request() );

   return INIT_SUCCEEDED;
}
void OnDeinit( const int reason )
{

}
int OnCalculate( const int       rates_total,
                 const int       prev_calculated,
                 const datetime  &time[],
                 const double    &open[],
                 const double    &high[],
                 const double    &low[],
                 const double    &close[],
                 const long      &tick_volume[],
                 const long      &volume[],
                 const int       &spread[] )
{

   return rates_total;
}

gas
function get_sheet() {
  const SHEET_NAME = "シート1"
  var active_st = SpreadsheetApp.getActiveSpreadsheet();
  var sheet     = active_st.getSheetByName( SHEET_NAME );

  return sheet;
}

function doPost(e) {
  Logger.log(e);
  /*
  var name = e.parameter.name;
  var hobby = e.parameter.hobby;

  var sheet = get_sheet();
  sheet.appendRow( [name, hobby] )
  return ContentService.createTextOutput('私の名前は'+name+'、趣味は'+hobby);
  */
  var params = JSON.parse(e.postData.getDataAsString());  // ※
  var value = params.value;  // => "AAA"が取れる

  // 何らかの処理...

  var output = ContentService.createTextOutput();
  output.setMimeType(ContentService.MimeType.JSON);
  output.setContent(JSON.stringify({ message: "success!" }));

  return output;
}