diff --git a/Modules/DiffusionImaging/IODataStructures/TbssImages/mitkTbssImage.cpp b/Modules/DiffusionImaging/IODataStructures/TbssImages/mitkTbssImage.cpp
index e67cd48478..0001c88bfd 100644
--- a/Modules/DiffusionImaging/IODataStructures/TbssImages/mitkTbssImage.cpp
+++ b/Modules/DiffusionImaging/IODataStructures/TbssImages/mitkTbssImage.cpp
@@ -1,45 +1,50 @@
 /*=========================================================================
 
 Program:   Medical Imaging & Interaction Toolkit
 Language:  C++
 Date:      $Date: 2008-02-08 11:19:03 +0100 (Fr, 08 Feb 2008) $
 Version:   $Revision: 11989 $
 
 Copyright (c) German Cancer Research Center, Division of Medical and
 Biological Informatics. All rights reserved.
 See MITKCopyright.txt or http://www.mitk.org/copyright.html for details.
 
 This software is distributed WITHOUT ANY WARRANTY; without even
 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 PURPOSE.  See the above copyright notices for more information.
 
 =========================================================================*/
 
+#ifndef __mitkTbssImage__cpp
+#define __mitkTbssImage__cpp
+
+
 #include "mitkTbssImage.h"
 #include "itkImageRegionIterator.h"
 #include "itkImageRegionConstIterator.h"
 #include "mitkImageCast.h"
 
 
 /*
 template<typename TPixelType>
 mitk::TbssImage<TPixelType>::TbssImage()
 {
 
 }
 
 template<typename TPixelType>
 mitk::TbssImage<TPixelType>::~TbssImage()
 {
 
 }
 
 
 template<typename TPixelType>
 void mitk::TbssImage<TPixelType>::InitializeFromImage()
 {
 
 }
 
 
 */
+#endif /* __mitkTbssImage__cpp */
diff --git a/Modules/DiffusionImaging/IODataStructures/TbssImages/mitkTbssImage.h b/Modules/DiffusionImaging/IODataStructures/TbssImages/mitkTbssImage.h
index df234ac328..f9ebd220cd 100644
--- a/Modules/DiffusionImaging/IODataStructures/TbssImages/mitkTbssImage.h
+++ b/Modules/DiffusionImaging/IODataStructures/TbssImages/mitkTbssImage.h
@@ -1,127 +1,128 @@
 /*=========================================================================
 
 Program:   Medical Imaging & Interaction Toolkit
 Language:  C++
 Date:      $Date: 2008-02-07 17:17:57 +0100 (Do, 07 Feb 2008) $
 Version:   $Revision: 11989 $
 
 Copyright (c) German Cancer Research Center, Division of Medical and
 Biological Informatics. All rights reserved.
 See MITKCopyright.txt or http://www.mitk.org/copyright.html for details.
 
 This software is distributed WITHOUT ANY WARRANTY; without even
 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 PURPOSE.  See the above copyright notices for more information.
 
 =========================================================================*/
 
 
 #ifndef __mitkTbssImage__h
 #define __mitkTbssImage__h
 
 #include "mitkImage.h"
 #include "itkImage.h"
 #include "mitkImageCast.h"
+#include "MitkDiffusionImagingExports.h"
 
 namespace mitk 
 {
 
   /**
   * \brief this class encapsulates diffusion volumes (vectorimages not
   * yet supported by mitkImage)
   */
   template<class TPixelType>
-  class TbssImage : public Image
+  class MitkDiffusionImaging_EXPORT TbssImage : public Image
   {
 
   public:
     typedef TPixelType PixelType;
     typedef typename itk::Image<TPixelType, 3>  ImageType;
     typedef itk::Index<3> IndexType;
     typedef typename std::vector<IndexType> RoiType;
 
     mitkClassMacro( TbssImage, Image )
     itkNewMacro(Self)
 
     enum Type{
       ROI,
       SKELETON
     };
 
 
     //void SetRequestedRegionToLargestPossibleRegion();
     //bool RequestedRegionIsOutsideOfTheBufferedRegion();
     //virtual bool VerifyRequestedRegion();
     //void SetRequestedRegion(itk::DataObject *data);
 
     typename ImageType::Pointer GetImage()
     {
       return m_Image;
     }
     void SetImage(typename ImageType::Pointer image )
     {
       this->m_Image = image;
     }
 
     itkSetMacro(TbssType, Type)
     itkGetMacro(TbssType, Type)
     itkGetMacro(PreprocessedFA, bool)
     itkSetMacro(PreprocessedFA, bool)
     itkGetMacro(PreprocessedFAFile, std::string)
     itkSetMacro(PreprocessedFAFile, std::string)
     itkGetMacro(Structure, std::string)
     itkSetMacro(Structure, std::string)
 
     void SetRoi(RoiType roi)
     {
       m_Roi = roi;
     }
 
     RoiType GetRoi()
     {
       return m_Roi;
     }
 
     void InitializeFromImage()
     {
       MITK_INFO << "make an mitk image that can be shown by mitk";
       this->InitializeByItk(m_Image.GetPointer(),1,1);
     }
 
   protected:
     TbssImage():m_PreprocessedFA(false)
     {
 
     }
     virtual ~TbssImage(){}
 
     typename ImageType::Pointer m_Image;
 
     Type m_TbssType;
 
     RoiType m_Roi;
 
     bool m_PreprocessedFA;
     std::string m_PreprocessedFAFile;
 
     std::string m_Structure;
 
   };
 
 
   // Does the same es the normal CastToMitkImage, but needed to reimplemented due to the templatet pixeltype
   template <typename ItkOutputImageType, typename PixelType>
   void CastToTbssImage(const ItkOutputImageType* itkimage, itk::SmartPointer< mitk::TbssImage<PixelType> >& tbssoutputimage)
   {
     if(tbssoutputimage.IsNull())
     {
       tbssoutputimage = mitk::TbssImage<PixelType>::New();
     }
     tbssoutputimage->InitializeByItk(itkimage);
     tbssoutputimage->SetChannel(itkimage->GetBufferPointer());
   }
 
 } // namespace mitk
 
 #include "mitkTbssImage.cpp"
 #endif /* __mitkTbssImage__h */