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diff --git a/examples/updater/updater.cpp b/examples/updater/updater.cpp
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+/**************************************************************************
+**
+** This file is part of Qt SDK**
+**
+** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).*
+**
+** Contact:  Nokia Corporation qt-info@nokia.com**
+**
+** No Commercial Usage
+**
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+**
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this file.
+** Please review the following information to ensure the GNU Lesser General
+** Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception version
+** 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you are unsure which license is appropriate for your use, please contact
+** (qt-info@nokia.com).
+**
+**************************************************************************/
+#include "updater.h"
+
+#include <QDateTime>
+#include <QDomDocument>
+#include <QProgressDialog>
+
+#include "common/binaryformat.h"
+#include "common/binaryformatenginehandler.h"
+#include "common/errors.h"
+
+#include "componentselectiondialog.h"
+#include "qinstaller.h"
+#include "qinstallercomponent.h"
+#include "qinstallercomponentmodel.h"
+#include "updatesettings.h"
+#include "init.h"
+
+#include <KDUpdater/Application>
+#include <KDUpdater/PackagesInfo>
+
+#include <KDToolsCore/KDAutoPointer>
+
+#include <iostream>
+
+using namespace QInstaller;
+
+class Updater::Private
+{
+public:
+    KDUpdater::Application updaterapp;
+    Installer installer;
+};
+
+Updater::Updater( QObject* parent )
+    : QObject( parent )
+{
+	QInstaller::init();
+}
+
+Updater::~Updater()
+{
+}
+
+bool Updater::checkForUpdates( bool checkonly )
+{
+    d->installer.setLinearComponentList( true );
+
+    std::auto_ptr< QInstallerCreator::BinaryFormatEngineHandler > handler( new QInstallerCreator::BinaryFormatEngineHandler( QInstallerCreator::ComponentIndex() ) );
+    handler->setComponentIndex( QInstallerCreator::ComponentIndex() );
+
+    UpdateSettings settings;
+    KDAutoPointer< ComponentSelectionDialog > dialog( checkonly ? 0 : new ComponentSelectionDialog( &d->installer ) );
+    if( !checkonly )
+        dialog->show();
+
+    ComponentModel::setVirtualComponentsVisible( true );
+
+    try
+    {
+        KDAutoPointer< QProgressDialog > progress( checkonly ? 0 : new QProgressDialog( dialog.get() ) );
+        if( !checkonly )
+        {
+            progress->setLabelText( tr( "Checking for updates..." ) );
+            progress->setRange( 0, 0 );
+            progress->show();
+        }
+        
+        settings.setLastCheck( QDateTime::currentDateTime() );
+        d->installer.setRemoteRepositories( settings.repositories() );
+        d->installer.setValue( QLatin1String( "TargetDir" ), QFileInfo( d->updaterapp.packagesInfo()->fileName() ).absolutePath() );
+    }
+    catch( const Error& error )
+    {
+        if( !checkonly )
+            QMessageBox::critical( dialog.get(), tr( "Check for Updates" ), tr( "Error while checking for updates:\n%1" ).arg( error.what() ) );
+        settings.setLastResult( tr( "Software Update failed." ) );
+        return false;
+    }
+    catch( ... )
+    {
+        if( !checkonly )
+            QMessageBox::critical( dialog.get(), tr( "Check for Updates" ), tr( "Unknown error while checking for updates." ) );
+        settings.setLastResult( tr( "Software Update failed." ) );
+        return false;
+    }
+
+    const QList< Component* > components = d->installer.components( true );
+
+    // no updates for us
+    if( components.isEmpty() && !checkonly )
+    {
+        QMessageBox::information( dialog.get(), tr( "Check for Updates" ), tr( "There are currently no updates available for you." ) );
+        return false;
+    }
+
+    if( checkonly )
+    {
+        QDomDocument doc;
+        QDomElement root = doc.createElement( QLatin1String( "updates" ) );
+        doc.appendChild( root );
+        for( QList< Component* >::const_iterator it = components.begin(); it != components.end(); ++it )
+        {
+            QDomElement update = doc.createElement( QLatin1String( "update" ) );
+            update.setAttribute( QLatin1String( "name" ), (*it)->value( QLatin1String( "DisplayName" ) ) );
+            update.setAttribute( QLatin1String( "version" ), (*it)->value( QLatin1String( "Version" ) ) );
+            update.setAttribute( QLatin1String( "size" ), (*it)->value( QLatin1String( "UncompressedSize" ) ) );
+            root.appendChild( update );
+        }
+        std::cout << doc.toString( 4 ).toStdString() << std::endl;
+        return true;
+    }
+
+    if( dialog->exec() == QDialog::Rejected )
+        return false;
+
+    try
+    {
+        QProgressDialog dialog;
+        dialog.setRange( 0, 100 );
+        dialog.show();
+        connect( &dialog, SIGNAL( canceled() ), &d->installer, SLOT( interrupt() ) );
+        connect( &d->installer, SIGNAL( installationProgressTextChanged( QString ) ), &dialog, SLOT( setLabelText( QString ) ) );
+        connect( &d->installer, SIGNAL( installationProgressChanged( int ) ), &dialog, SLOT( setValue( int ) ) );
+        d->installer.installSelectedComponents();
+    }
+    catch( const Error& error )
+    {
+        QMessageBox::critical( dialog.get(), tr( "Check for Updates" ), tr( "Error while installing updates:\n%1" ).arg( error.what() ) );
+        d->installer.rollBackInstallation();
+        settings.setLastResult( tr( "Software Update failed." ) );
+        return false;
+    }
+    catch( ... )
+    {
+        QMessageBox::critical( dialog.get(), tr( "Check for Updates" ), tr( "Unknown error while installing updates." ) );
+        d->installer.rollBackInstallation();
+        settings.setLastResult( tr( "Software Update failed." ) );
+        return false;
+    }
+
+    return true;
+}