diff --git a/piwigo-netinstall.php b/piwigo-netinstall.php
new file mode 100644
index 0000000..ad35061
--- /dev/null
+++ b/piwigo-netinstall.php
@@ -0,0 +1,578 @@
+<?php
+# -- BEGIN LICENSE BLOCK ----------------------------------
+#
+# This file is part of Piwigo.
+#
+# Copyright (c) 2003-2008 Olivier Meunier and contributors
+# Licensed under the GPL version 2.0 license.
+# See LICENSE file or
+# http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+#
+# -- END LICENSE BLOCK ------------------------------------
+
+// +-----------------------------------------------------------------------+
+// |                              Configuration                            |
+// +-----------------------------------------------------------------------+
+
+define('DC_LOADER_SERVICE','http://piwigo.org/download/netinstall/');
+define('DC_LOADER_ARCHIVE','http://piwigo.org/download/dlcounter.php?code=latest');
+define('REQUIRED_PHP_VERSION', '5.3.0');
+
+$available_languages = array(
+  'cs_CZ' => 'Česky [CZ]',
+  'da_DK' => 'Dansk [DK]',
+  'de_DE' => 'Deutch [DE]',
+  'el_GR' => 'Ελληνικά [GR]',
+  'en_UK' => 'English [UK]',
+  'es_ES' => 'Español [ES]',
+  'fa_IR' => 'پارسی [IR]',
+  'fr_FR' => 'Français [FR]',
+  'gl_ES' => 'Galego [ES]',
+  'hu_HU' => 'Magyar [HU]',
+  'it_IT' => 'Italiano [IT]',
+  'lv_LV' => 'Latviešu [LV]',
+  'nb_NO' => 'Norwegian [NO]',
+  'nl_NL' => 'Nederlands [NL]',
+  'pl_PL' => 'Polski [PL]',
+  'pt_BR' => 'Brasil [BR]',
+  'pt_PT' => 'Português [PT]',
+  'ru_RU' => 'Русский [RU]',
+  'sk_SK' => 'Slovensky [SK]',
+  'tr_TR' => 'Türkçe [TR]',
+  'uk_UA' => 'Українська [UA]',
+  'zh_CN' => '简体中文 [CN]',
+);
+
+$url_subdomain_for_language = array(
+  'pt_BR' => 'br',
+  'da_DK' => 'da',
+  'de_DE' => 'de',
+  'es_ES' => 'es',
+  'fr_FR' => 'fr',
+  'it_IT' => 'it',
+  'hu_HU' => 'hu',
+  'nl_NL' => 'nl',
+  'pl_PL' => 'pl',
+  'tr_TR' => 'tr',
+  'ru_RU' => 'ru',
+  'zh_CN' => 'cn',
+  );
+
+// +-----------------------------------------------------------------------+
+
+error_reporting(E_ALL & ~E_NOTICE);
+
+getLanguage();
+
+$step = !empty($_REQUEST['step']) ? (integer)$_REQUEST['step'] : 1;
+$got_php5 = version_compare(PHP_VERSION, REQUIRED_PHP_VERSION, '>=');
+if (!$got_php5 && $step != 2)
+{
+  $step = 1;
+}
+
+function l10n($str)
+{
+  global $lang;
+
+  return isset($lang[$str]) ? $lang[$str] : $str;
+}
+
+function fetchRemote($src,&$dest,$step=0)
+{
+  if ($step > 3)
+  {
+    return false;
+  }
+
+  // Try curl to read remote file
+  if (function_exists('curl_init') && function_exists('curl_exec'))
+  {
+    $ch = @curl_init(); 
+    @curl_setopt($ch, CURLOPT_URL, $src); 
+    @curl_setopt($ch, CURLOPT_HEADER, 0); 
+    @curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
+    @curl_setopt($ch, CURLOPT_USERAGENT, 'Piwigo Net Install'); 
+    $content = @curl_exec($ch);
+    @curl_close($ch);
+    if ($content !== false)
+    {
+      write_dest($content, $dest);
+      return true;
+    }
+  }
+
+  // Try file_get_contents to read remote file
+  if ((boolean)ini_get('allow_url_fopen'))
+  {
+    $content = @file_get_contents($src);
+    if ($content !== false)
+    {
+      write_dest($content, $dest);
+      return true;
+    }
+  }
+  
+  if (!function_exists('fsockopen'))
+  {
+    return false;
+  }
+
+  // Try fsockopen to read remote file
+  $src = parse_url($src);
+  $host = $src['host'];
+  $path = $src['path'];
+  
+  if (($s = @fsockopen($host,80,$errno,$errstr,5)) === false)
+  {
+    return false;
+  }
+
+  fwrite($s,
+    'GET '.$path." HTTP/1.0\r\n"
+    .'Host: '.$host."\r\n"
+    ."User-Agent: Piwigo Net Install\r\n"
+    ."Accept: text/xml,application/xml,application/xhtml+xml,text/html,text/plain,image/png,image/jpeg,image/gif,*/*\r\n"
+    ."\r\n"
+  );
+
+  $i = 0;
+  $in_content = false;
+  while (!feof($s))
+  {
+    $line = fgets($s,4096);
+
+    if (rtrim($line,"\r\n") == '' && !$in_content)
+    {
+      $in_content = true;
+      $i++;
+      continue;
+    }
+    if ($i == 0)
+    {
+      if (!preg_match('/HTTP\/(\\d\\.\\d)\\s*(\\d+)\\s*(.*)/',rtrim($line,"\r\n"), $m))
+      {
+        fclose($s);
+        return false;
+      }
+      $status = (integer) $m[2];
+      if ($status < 200 || $status >= 400)
+      {
+        fclose($s);
+        return false;
+      }
+    }
+    if (!$in_content)
+    {
+      if (preg_match('/Location:\s+?(.+)$/',rtrim($line,"\r\n"),$m))
+      {
+        fclose($s);
+        return fetchRemote(trim($m[1]),$dest,$step+1);
+      }
+      $i++;
+      continue;
+    }
+    write_dest($line, $dest);
+    $i++;
+  }
+  fclose($s);
+  return true;
+}
+
+function write_dest($str, &$dest)
+{
+  if (is_resource($dest))
+  {
+    fwrite($dest, $str);
+  }
+  else
+  {
+    $dest .= $str;
+  }
+}
+
+function getLanguage()
+{
+  global $lang, $available_languages;
+
+  if (isset($_GET['language']) and isset($available_languages[$_GET['language']]))
+  {
+    $language = $_GET['language'];
+  }
+  else
+  {
+    $language = 'en_UK';
+    // Try to get browser language
+    foreach ($available_languages as $language_code => $language_name)
+    {
+      if (substr($language_code,0,2) == @substr($_SERVER["HTTP_ACCEPT_LANGUAGE"],0,2))
+      {
+        $language = $language_code;
+        break;
+      }
+    }
+  }
+  // Retrieve traductions
+  $lang = array();
+  if (fetchRemote(DC_LOADER_SERVICE.'language/'.$language.'/loader.lang.txt', $code))
+  {
+    @eval($code);
+    define('DC_LOADER_LANG', $language);
+  }
+}
+
+function getLocation()
+{
+  $server_name = explode(':',$_SERVER['HTTP_HOST']);
+  $server_name = $server_name[0];
+  if ($_SERVER['SERVER_PORT'] == '443')
+  {
+    $scheme = 'https';
+    $port = '';
+  }
+  elseif (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on')
+  {
+    $scheme = 'https';
+    $port = ($_SERVER['SERVER_PORT'] != '443') ? ':'.$_SERVER['SERVER_PORT'] : '';
+  }
+  else
+  {
+    $scheme = 'http';
+    $port = ($_SERVER['SERVER_PORT'] != '80') ? ':'.$_SERVER['SERVER_PORT'] : '';
+  }
+  $loc = preg_replace('#/$#','',str_replace('\\', '/', dirname($_SERVER['SCRIPT_NAME'])));
+
+  return $scheme.'://'.$server_name.$port.$loc.'/';
+}
+
+function openPage()
+{
+  header('Content-Type: text/html; charset=UTF-8');
+  echo
+  '<!DOCTYPE html>'."\n".
+  '<html lang="'.l10n('code').'" dir="'.l10n('direction').'">'."\n".
+  '<head>'."\n".
+  ' <meta charset="UTF-8" />'."\n".
+  ' <title>'.l10n('Piwigo NetInstall').'</title>'."\n".
+  ' <meta name="ROBOTS" content="NOARCHIVE,NOINDEX,NOFOLLOW" />'."\n".
+  ' <link rel="stylesheet" type="text/css" media="screen" href="'.DC_LOADER_SERVICE.'loader.css" />'."\n".
+  '</head>'."\n".
+  '<body>'."\n".
+  '<div id="theHeader"></div>'."\n".
+  '<div id="content">'."\n".
+  '<h2>'.l10n('Piwigo NetInstall').'</h2>'."\n";
+}
+
+function closePage()
+{
+  global $url_subdomain_for_language;
+
+  $prefix = '';
+  if (isset($url_subdomain_for_language[DC_LOADER_LANG]))
+  {
+    $prefix = $url_subdomain_for_language[DC_LOADER_LANG].'.';
+  }
+  
+  echo
+    '<div style="text-align:center">'.
+      sprintf(l10n('Need help ? Ask your question on <a href="%s">Piwigo message board</a>.'), 'http://'.$prefix.'piwigo.org/forum').
+    '</div>'."\n".
+  '</div>'."\n".
+  '</body>'."\n".
+  '</html>';
+}
+
+function initPHP5()
+{
+  $htaccess = dirname(__FILE__).'/.htaccess';
+  if (file_exists($htaccess)) {
+    if (!is_readable($htaccess) || !is_writable($htaccess))
+    {
+      return false;
+    }
+  }
+  $rawdatas = '';
+  if (!fetchRemote(DC_LOADER_SERVICE.'hosting.txt',$rawdatas))
+  {
+    return false;
+  }
+  $rawdatas = explode("\n",$rawdatas);
+  if (!($my_hostname = @gethostbyaddr($_SERVER['SERVER_ADDR'])))
+  {
+    return false;
+  }
+  $found = false;
+  foreach ($rawdatas as $line) {
+    list($name,$hostname,$rule) = explode('|',trim($line));
+    if (preg_match('!'.preg_quote($hostname).'$!',$my_hostname))
+    {
+      $found = $rule;
+      break;
+    }
+  }
+  if ($found) {
+    if (false !== ($fh = @fopen($htaccess,"ab")))
+    {
+      fwrite($fh,"\n".$found);
+      fclose($fh);
+      return true;
+    }
+  }
+  return false;
+}
+
+function cleanFiles()
+{
+  @unlink(dirname(__FILE__).'/pwg_files.php');
+  @unlink(dirname(__FILE__).'/pwg_unzip.php');
+  @unlink(dirname(__FILE__).'/piwigo-install.zip');
+}
+
+function grabFiles()
+{
+  $failed = true;
+  $lib_files = @fopen(dirname(__FILE__).'/pwg_files.php','wb');
+  $lib_unzip = @fopen(dirname(__FILE__).'/pwg_unzip.php','wb');
+  $dc_zip    = @fopen(dirname(__FILE__).'/piwigo-install.zip','wb');
+
+  if (!$lib_files || !$lib_unzip || !$dc_zip)
+  {
+    return false;
+  }
+
+  if (fetchRemote(DC_LOADER_SERVICE.'lib.files.txt',$lib_files))
+  {
+    if (fetchRemote(DC_LOADER_SERVICE.'class.unzip.txt',$lib_unzip))
+    {
+      if (fetchRemote(DC_LOADER_ARCHIVE.'',$dc_zip))
+      {
+        $failed = false;
+      }
+    }
+  }
+
+  fclose($lib_files);
+  fclose($lib_unzip);
+  fclose($dc_zip);
+
+  if ($failed)
+  {
+    cleanFiles();
+    return false;
+  }
+  return true;
+}
+
+function writeMessage($level,$title,$lines)
+{
+  if (empty($lines))
+  {
+    return;
+  }
+
+  echo 
+  '<div class="msg '.$level.'">'."\n".
+  '<h3>'.$title.'</h3>'."\n".
+  '<p>'."\n";
+  foreach ($lines as $line)
+  {
+    echo $line.'<br />'."\n";
+  }
+  echo '</p></div>'."\n";
+}
+
+function nextAction($label,$step,$more='')
+{
+  echo
+  '<form action="'.$_SERVER['SCRIPT_NAME'].'?language='.DC_LOADER_LANG.'" method="post">'."\n".
+  $more."\n".
+  '<p class="button"><input type="hidden" name="step" value="'.$step.'" />'."\n".
+  '<input type="hidden" name="lang" value="'.DC_LOADER_LANG.'" />'."\n".
+  '<input type="submit" name="submit" value="'.$label.'"/>'."\n".
+  '</p></form>'."\n";
+}
+
+
+if (!defined('DC_LOADER_LANG'))
+{
+  $lang['code'] = 'en';
+  $lang['direction'] = 'ltr';
+
+  // No traduction for this part because can't fetch!
+  openPage();
+  writeMessage('warning','Damnit!', array(
+    'Due to restrictions in your PHP configuration, NetInstall cannot get its job done.',
+    'Please see Piwigo documentation to perform a normal installation.',
+    'Really sorry for the inconvenience.'
+  ));
+  closePage();
+  exit;
+}
+
+switch ($step)
+{
+  case 1 :
+  {
+    openPage();
+    echo '<fieldset><legend>'.l10n('Welcome to NetInstall!').'</legend>'."\n";
+
+    // Show available languages
+    asort($available_languages);
+    echo
+    '<p class="language">'.l10n('Language').' &nbsp;'."\n".
+    '<select name="language" onchange="document.location = \''.basename(__FILE__).'?language=\'+this.options[this.selectedIndex].value;">'."\n";
+    foreach ($available_languages as $language_code => $language_name)
+    {
+      echo '<option label="'.$language_name.'" value="'.$language_code.'" '.($language_code == DC_LOADER_LANG ? 'selected="selected"' : '').'>'.$language_name.'</option>'."\n";
+    }
+    echo '</select>'."\n".'</p>'."\n";
+
+    echo
+    '<p>'.l10n('This tool is meant to retrieve the latest Piwigo archive and unzip it in your webspace.').'<br />'."\n".
+    l10n('Right after then, you will be redirect to the Piwigo Setup Wizard.').'</p>'."\n";
+
+    if (!is_writable(dirname(__FILE__)))
+    {
+      writeMessage('warning',l10n('Write access is needed'), array(
+        l10n('It looks like NetInstall wont be able to write in the current directory, and this is required to follow on.'),
+        l10n('Please try to change the permissions to allow write access, then reload this page by hitting the Refresh button.')
+      ));
+      nextAction(l10n('Refresh'),1);
+    }
+    elseif (!$got_php5)
+    {
+      writeMessage('notice',sprintf(l10n('PHP %s is required'), REQUIRED_PHP_VERSION), array(
+        sprintf(l10n('It appears your webhost is currently running PHP %s.'), PHP_VERSION),
+        // l10n('NetInstall may try to switch your configuration to PHP 5 by creating or modifying a .htaccess file.'),
+        // l10n('Note you can change your configuration by yourself and restart NetInstall after that.')
+      ));
+
+      // 2018-07-18 : Piwigo 2.9.4 is out and now requires PHP 5.3 instead of 5.2.
+      // I realize NetInstall has this procedure which try to force PHP 5 instead
+      // of PHP 4. This procedure has become useless in 2018. I comment it for now,
+      // because we may need it in a few years when PHP 7 will become mandatory.
+
+      // nextAction(l10n('Try to configure PHP 5'),2);
+    }
+    else
+    {
+      nextAction(l10n('Retrieve and unzip Piwigo'),3,
+        '<p class="destination" dir="ltr"><label for="destination">'.l10n('Destination:').'</label> '.
+        getLocation().
+        ' <input type="text" id="destination" name="destination" '.
+        'value="piwigo" size="15" maxlength="100" /></p>'
+      );
+    }
+    echo '</fieldset>';
+    closePage();
+    break;
+  }
+
+  case 2 :
+  {
+    if (!empty($_POST['submit']) && !$got_php5)
+    {
+      $got_php5 = initPHP5();
+    }
+    if ($got_php5)
+    {
+      header('Location: '.$_SERVER['SCRIPT_NAME'].'?step=1&language='.DC_LOADER_LANG);
+    }
+    else
+    {
+      openPage();
+      writeMessage('warning',l10n('Sorry!'),array(
+        l10n('NetInstall was not able to configure PHP 5.'),
+        l10n("You may referer to your hosting provider's support and see how you could switch to PHP 5 by yourself."),
+        l10n('Hope to see you back soon.')
+      ));
+      closePage();
+    }
+    break;
+  }
+
+  case 3 :
+  {
+    $msg = array(l10n('What are you doing here that way ?!'));
+    $text = '';
+    if (!empty($_POST['submit']) && isset($_POST['destination']))
+    {
+      $msg = array();
+      $dest = preg_replace('/[^A-Za-z0-9_\/-]/','',$_POST['destination']);
+      $dest = preg_replace('#/+#','/',$dest);
+      
+      if (file_exists(dirname(__FILE__).'/./'.$dest.'/include/mysql.inc.php') || file_exists(dirname(__FILE__).'/./'.$dest.'/include/default_config.inc.php'))
+      {
+        $msg[] = l10n('It seems like a previous Piwigo installation is still sitting in that space.');
+        $msg[] = l10n('You need to rename or remove it before we can go further...');
+      }
+      elseif (grabFiles())
+      {
+        $lib_files = dirname(__FILE__).'/pwg_files.php';
+        $lib_unzip = dirname(__FILE__).'/pwg_unzip.php';
+        $dc_zip    = dirname(__FILE__).'/piwigo-install.zip';
+        if (!file_exists($lib_files) || !file_exists($lib_unzip) || !file_exists($dc_zip))
+        {
+          $msg[] = l10n('Needed files are not present.');
+        }
+
+        require $lib_files;
+        require $lib_unzip;
+        $uz = new fileUnzip($dc_zip);
+        $files = $uz->getList();
+        if (!is_array($files) or count($files) == 0)
+        {
+          $msg[] = l10n('Invalid zip file.');
+        }
+        else
+        {
+          foreach ($files as $k => $v)
+          {
+            if ($v['is_dir'])
+            {
+              continue;
+            }
+          if (preg_match('#^[^/]*/_data#', $k))
+          {
+            continue;
+          }
+            $t = preg_replace('#^[^/]*/#','./'.$dest.'/',$k);
+            $uz->unzip($k,$t);
+          }
+        }
+        $uz->close;
+        unset($uz);
+
+        if (!is_dir(dirname(__FILE__).'/'.$dest))
+        {
+          $msg[] = l10n('It seems that the zip file was not extracted.');
+        }
+        else
+        {
+          # Remove files and self-destruction
+          cleanFiles();
+          unlink(__FILE__);
+
+          $redir = preg_replace('#/+#','/',str_replace('\\', '/', dirname($_SERVER['SCRIPT_NAME'])).'/'.$dest.'/install.php');
+
+          $text = '<fieldset><legend>'.l10n('Congratulations!').'</legend>'
+          .'<p>'.l10n('Everything went fine. You are now ready to start the installation procedure.').'</p>'
+          .'<form action="'.$redir.'" method="get"><p class="button">'
+          . '<input type="hidden" name="language" value="'.DC_LOADER_LANG.'">'
+          . '<input type="submit" value="'.l10n('Install Piwigo now').'" />'
+          . '</p></form>'
+          .'</fieldset>';
+        }
+      }
+      else
+      {
+        $msg[] = l10n('An error occurred while grabbing the necessary files to go on.');
+      }
+    }
+    openPage();
+    writeMessage('warning',l10n('Something went wrong...'),$msg);
+    echo $text;
+    closePage();
+    break;
+  }
+}