XP GUI not displayed.

• I compile Qt XP source code, 

• configure -prefix  E:/5.6.3Build -debug-and-release -opensource -confirm-license -opengl dynamic -mp -icu -openssl -nomake examples -nomake tests -platform win32-msvc2013 -target xp -no-directwrite -qt-sql-sqlite

win7  win8 win10 normally, XP display abnormal, There is no GUI but there is a process.

Attached is the release version of the program, please unzip to the same file.

Qt5WebEngineCore.dll   the file is too large ,have 15M   ,failtoupload.

#include "qwebenginexp.h"
#include "ui_qwebenginexp.h"

#include <QHBoxLayout>

QWebEngineXp::QWebEngineXp(QWidget *parent) :
QWidget(parent),
ui(new Ui::QWebEngineXp)
{
      ui->setupUi(this);
      webEngine = new QWebEngineView();
      QHBoxLayout *HLayout = new QHBoxLayout(ui->widget);
      HLayout->addWidget(webEngine);

}

QWebEngineXp::~QWebEngineXp()
{
     delete ui;
}

void QWebEngineXp::on_pushButton_clicked()
{
      QString uilStr = ui->lineEdit->text();
     if (uilStr.isEmpty())
    {
         uilStr = "https://www.baidu.com";
    }
    webEngine->load(QUrl(uilStr));
    webEngine->show();
}