diff --git a/Core/Code/Algorithms/mitkTimeHelper.h b/Core/Code/Algorithms/mitkTimeHelper.h
index 53130187ee..3ae3bab7bf 100644
--- a/Core/Code/Algorithms/mitkTimeHelper.h
+++ b/Core/Code/Algorithms/mitkTimeHelper.h
@@ -1,81 +1,76 @@
 /*===================================================================
 
 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.
 
 ===================================================================*/
 
 
 #ifndef MITKTIMEHELPER_H_HEADER_INCLUDED_C1C2FCD2
 #define MITKTIMEHELPER_H_HEADER_INCLUDED_C1C2FCD2
 
 namespace mitk
 {
 
 //## @brief convert the start- and end-index-time of output-region in
 //## start- and end-index-time of input-region via millisecond-time
 template <class TOutputRegion, class TInputRegion>
-void ITK_EXPORT GenerateTimeInInputRegion(const mitk::TimeSlicedGeometry *outputTimeGeometry, const TOutputRegion& outputRegion, const mitk::TimeSlicedGeometry *inputTimeGeometry, TInputRegion& inputRegion)
+void GenerateTimeInInputRegion(const mitk::TimeSlicedGeometry *outputTimeGeometry, const TOutputRegion& outputRegion, const mitk::TimeSlicedGeometry *inputTimeGeometry, TInputRegion& inputRegion)
 {
   assert(outputTimeGeometry!=NULL);
   assert(inputTimeGeometry!=NULL);
 
   // convert the start-index-time of output in start-index-time of input via millisecond-time
   ScalarType timeInMS = outputTimeGeometry->TimeStepToMS(outputRegion.GetIndex(3));
   int timestep = inputTimeGeometry->MSToTimeStep( timeInMS );
   if( ( timeInMS > ScalarTypeNumericTraits::NonpositiveMin() ) && ( inputTimeGeometry->IsValidTime( timestep ) ) )
     inputRegion.SetIndex( 3, timestep );
   else
     inputRegion.SetIndex( 3, 0 );
   // convert the end-index-time of output in end-index-time of input via millisecond-time
   timeInMS = outputTimeGeometry->TimeStepToMS(outputRegion.GetIndex(3)+outputRegion.GetSize(3)-1);
   timestep = inputTimeGeometry->MSToTimeStep( timeInMS );
   if( ( timeInMS > ScalarTypeNumericTraits::NonpositiveMin() ) && ( outputTimeGeometry->IsValidTime( timestep ) ) )
     inputRegion.SetSize( 3, timestep - inputRegion.GetIndex(3) + 1 );
   else
     inputRegion.SetSize( 3, 1 );
 }
 
 //##Documentation
 //## @brief convert the start- and end-index-time of output in
 //## start- and end-index-time of input1 and input2 via millisecond-time
 template <class TOutputData, class TInputData>
-void ITK_EXPORT GenerateTimeInInputRegion(const TOutputData* output, TInputData* input)
+void GenerateTimeInInputRegion(const TOutputData* output, TInputData* input)
 {
   assert(output!=NULL);
   assert(input!=NULL);
 
   const typename TOutputData::RegionType& outputRegion = output->GetRequestedRegion();
   typename TInputData::RegionType inputRegion;
 
   if(outputRegion.GetSize(3)<1)
   {
     typename TInputData::RegionType::SizeType inputsize;
     inputsize.Fill(0);
     inputRegion.SetSize(inputsize);
     input->SetRequestedRegion( &inputRegion );
   }
 
   // convert the start-index-time of output in start-index-time of input via millisecond-time
   inputRegion = input->GetRequestedRegion();
   GenerateTimeInInputRegion(output->GetTimeSlicedGeometry(), outputRegion, input->GetTimeSlicedGeometry(), inputRegion);
   input->SetRequestedRegion( &inputRegion  );
 }
 
 } // end namespace mitk
 
-//#ifndef ITK_MANUAL_INSTANTIATION
-//#include "mitkTimeHelper.txx"
-#include "MitkExtExports.h"
-//#endif
-
 #endif // MITKTIMEHELPER_H_HEADER_INCLUDED_C1C2FCD2