diff --git a/Plugins/org.mitk.gui.qt.common/src/QmitkDnDFrameWidget.cpp b/Plugins/org.mitk.gui.qt.common/src/QmitkDnDFrameWidget.cpp
index e451f79b6b..71b3d0f9f2 100644
--- a/Plugins/org.mitk.gui.qt.common/src/QmitkDnDFrameWidget.cpp
+++ b/Plugins/org.mitk.gui.qt.common/src/QmitkDnDFrameWidget.cpp
@@ -1,92 +1,90 @@
 /*===================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center,
 Division of Medical and Biological Informatics.
 All rights reserved.
 
 This software is distributed WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR
 A PARTICULAR PURPOSE.
 
 See LICENSE.txt or http://www.mitk.org for details.
 
 ===================================================================*/
 
 #include <QmitkDnDFrameWidget.h>
 
 #include <berryIPreferencesService.h>
 #include <berryPlatformUI.h>
 
 #include "internal/QmitkCommonActivator.h"
 
-#include <ctkServiceTracker.h>
-
 #include <mitkWorkbenchUtil.h>
 
 #include <QDragEnterEvent>
 
 
 class QmitkDnDFrameWidgetPrivate
 {
 public:
 
   berry::IPreferences::Pointer GetPreferences() const
   {
     berry::IPreferencesService::Pointer prefService = QmitkCommonActivator::GetInstance()->GetPreferencesService();
     if (prefService.IsNotNull())
     {
       return prefService->GetSystemPreferences()->Node("/General");
     }
     return berry::IPreferences::Pointer(0);
   }
 
   bool GetOpenEditor() const
   {
     berry::IPreferences::Pointer prefs = GetPreferences();
     if(prefs.IsNotNull())
     {
       return prefs->GetBool("OpenEditor", true);
     }
     return true;
   }
 
 };
 
 QmitkDnDFrameWidget::QmitkDnDFrameWidget(QWidget *parent)
 : QWidget(parent), d(new QmitkDnDFrameWidgetPrivate())
 {
   setAcceptDrops(true);
 }
 
 QmitkDnDFrameWidget::~QmitkDnDFrameWidget()
 {
 }
 
 void QmitkDnDFrameWidget::dragEnterEvent( QDragEnterEvent *event )
 {   // accept drags
   event->acceptProposedAction();
 }
 
 void QmitkDnDFrameWidget::dropEvent( QDropEvent * event )
 { //open dragged files
 
   QList<QUrl> fileNames = event->mimeData()->urls();
   if (fileNames.empty())
     return;
 
   QStringList fileNames2;
   //TODO Qt 4.7 API
   //fileNames2.reserve(fileNames.size());
   foreach(QUrl url, fileNames)
   {
     fileNames2.push_back(url.toLocalFile());
   }
 
   mitk::WorkbenchUtil::LoadFiles(fileNames2,
                                  berry::PlatformUI::GetWorkbench()->GetActiveWorkbenchWindow(),
                                  d->GetOpenEditor());
 
   event->accept();
 }