diff --git a/Modules/IGT/IO/mitkNavigationToolStorageDeserializer.cpp b/Modules/IGT/IO/mitkNavigationToolStorageDeserializer.cpp
index f9722c0fd5..23db54b17f 100644
--- a/Modules/IGT/IO/mitkNavigationToolStorageDeserializer.cpp
+++ b/Modules/IGT/IO/mitkNavigationToolStorageDeserializer.cpp
@@ -1,116 +1,116 @@
 /*===================================================================
 
 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.
 
 ===================================================================*/
 
 //Poco headers
 #include "Poco/Zip/Decompress.h"
 #include "Poco/Path.h"
 #include "Poco/File.h"
 
 #include "mitkNavigationToolStorageDeserializer.h"
 #include <mitkSceneIO.h>
 #include <mitkIOUtil.h>
 #include "mitkNavigationToolReader.h"
 
 //POCO
 #include <Poco/Exception.h>
 
 
 #include "mitkIGTException.h"
 #include "mitkIGTIOException.h"
 
 
 mitk::NavigationToolStorageDeserializer::NavigationToolStorageDeserializer(mitk::DataStorage::Pointer dataStorage)
   {
   m_DataStorage = dataStorage;
   //create temp directory for this reader
-  m_tempDirectory = mitk::IOUtil::CreateTemporaryDirectory("NavigationToolStorageDeserializerTmp_XXXXXX",mitk::IOUtil::GetProgramPath());
+  m_tempDirectory = mitk::IOUtil::CreateTemporaryDirectory("NavigationToolStorageDeserializerTmp_XXXXXX",mitk::IOUtil::GetTempPath());
   }
 
 mitk::NavigationToolStorageDeserializer::~NavigationToolStorageDeserializer()
   {
   //remove temp directory
   Poco::File myFile(m_tempDirectory);
   try
     {
     if (myFile.exists()) myFile.remove();
     }
   catch(...)
     {
     MITK_ERROR << "Can't remove temp directory " << m_tempDirectory << "!";
     }
   }
 
 mitk::NavigationToolStorage::Pointer mitk::NavigationToolStorageDeserializer::Deserialize(std::string filename)
   {
   //decomress zip file into temporary directory
   decomressFiles(filename,m_tempDirectory);
 
   //now read all files and convert them to navigation tools
   mitk::NavigationToolStorage::Pointer returnValue = mitk::NavigationToolStorage::New(m_DataStorage);
   bool cont = true;
   int i;
   for (i=0; cont==true; i++)
     {
     std::string fileName = m_tempDirectory + Poco::Path::separator() + "NavigationTool" + convertIntToString(i) + ".tool";
     mitk::NavigationToolReader::Pointer myReader = mitk::NavigationToolReader::New();
     mitk::NavigationTool::Pointer readTool = myReader->DoRead(fileName);
     if (readTool.IsNull()) cont = false;
     else returnValue->AddTool(readTool);
     //delete file
     std::remove(fileName.c_str());
     }
   if(i==1)
     {
     //throw an exception here in case of not finding any tool
     m_ErrorMessage = "Error: did not find any tool. \n Is this a tool storage file?";
     mitkThrowException(mitk::IGTException)<<"Error: did not find any tool. \n Is this a tool storage file?";
     }
   return returnValue;
   }
 
 std::string mitk::NavigationToolStorageDeserializer::convertIntToString(int i)
 {
 std::string s;
 std::stringstream out;
 out << i;
 s = out.str();
 return s;
 }
 
 void mitk::NavigationToolStorageDeserializer::decomressFiles(std::string filename,std::string path)
 {
   std::ifstream file( filename.c_str(), std::ios::binary );
   if (!file.good())
     {
     m_ErrorMessage = "Cannot open '" + filename + "' for reading";
     mitkThrowException(mitk::IGTException)<<"Cannot open"+filename+" for reading";
     }
 
   try
     {
     Poco::Zip::Decompress unzipper( file, Poco::Path( path ) );
     unzipper.decompressAllFiles();
     file.close();
     }
 
   catch(Poco::IllegalStateException e) //temporary solution: replace this by defined exception handling later!
     {
     m_ErrorMessage = "Error: wrong file format! \n (please only load tool storage files)";
     MITK_ERROR << m_ErrorMessage;
     mitkThrowException(mitk::IGTException) << m_ErrorMessage;
     }
 
   }
diff --git a/Modules/IGT/Testing/files.cmake b/Modules/IGT/Testing/files.cmake
index a7e72a1ad9..3f3bb46b60 100644
--- a/Modules/IGT/Testing/files.cmake
+++ b/Modules/IGT/Testing/files.cmake
@@ -1,67 +1,67 @@
 set(MODULE_TESTS
    # IMPORTANT: If you plan to deactivate / comment out a test please write a bug number to the commented out line of code.
    #
    #     Example: #mitkMyTest #this test is commented out because of bug 12345
    #
    # It is important that the bug is open and that the test will be activated again before the bug is closed. This assures that
    # no test is forgotten after it was commented out. If there is no bug for your current problem, please add a new one and
    # mark it as critical.
 
    ################## ON THE FENCE TESTS #################################################
    # none
 
    ################## DISABLED TESTS #####################################################
 
 
    ################# RUNNING TESTS #######################################################
    mitkCameraVisualizationTest.cpp
    mitkClaronInterfaceTest.cpp
    mitkClaronToolTest.cpp
    mitkClaronTrackingDeviceTest.cpp
    mitkInternalTrackingToolTest.cpp
    mitkNavigationDataDisplacementFilterTest.cpp
    mitkNavigationDataLandmarkTransformFilterTest.cpp
    mitkNavigationDataObjectVisualizationFilterTest.cpp
    mitkNavigationDataSetTest.cpp
    mitkNavigationDataTest.cpp
    mitkNavigationDataRecorderTest.cpp
    mitkNavigationDataReferenceTransformFilterTest.cpp
    mitkNavigationDataSequentialPlayerTest.cpp
    mitkNavigationDataSetReaderWriterXMLTest.cpp
    mitkNavigationDataSetReaderWriterCSVTest.cpp
    mitkNavigationDataSourceTest.cpp
    mitkNavigationDataToMessageFilterTest.cpp
    mitkNavigationDataToNavigationDataFilterTest.cpp
    mitkNavigationDataToPointSetFilterTest.cpp
    mitkNavigationDataToIGTLMessageFilterTest.cpp
    mitkNavigationDataTransformFilterTest.cpp
    mitkNDIPassiveToolTest.cpp
    mitkNDIProtocolTest.cpp
    mitkNDITrackingDeviceTest.cpp
    mitkTimeStampTest.cpp
    mitkTrackingVolumeGeneratorTest.cpp
    mitkTrackingDeviceTest.cpp
    mitkTrackingToolTest.cpp
    mitkVirtualTrackingDeviceTest.cpp
    # mitkNavigationDataPlayerTest.cpp # random fails see bug 16485.
    # We decided to won't fix because of complete restructuring via bug 15959.
    mitkTrackingDeviceSourceTest.cpp
    mitkTrackingDeviceSourceConfiguratorTest.cpp
    mitkNavigationDataEvaluationFilterTest.cpp
    mitkTrackingTypesTest.cpp
    mitkOpenIGTLinkTrackingDeviceTest.cpp
    # ------------------ Navigation Tool Management Tests -------------------
+   mitkNavigationToolStorageDeserializerTest.cpp # Activated experimentally on dart clients, see task T17303 for details.
    mitkNavigationToolStorageTest.cpp
    mitkNavigationToolTest.cpp
    # -----------------------------------------------------------------------
 )
 
 set(MODULE_CUSTOM_TESTS
   mitkNDIAuroraHardwareTest.cpp
   mitkNDIPolarisHardwareTest.cpp
   mitkClaronTrackingDeviceHardwareTest.cpp
   mitkNavigationToolReaderAndWriterTest.cpp #deactivated because of bug 18835
-  mitkNavigationToolStorageDeserializerTest.cpp # This test was disabled because of bug 17303.
   mitkNavigationToolStorageSerializerAndDeserializerIntegrationTest.cpp # This test was disabled because of bug 17181.
   mitkNavigationToolStorageSerializerTest.cpp # This test was disabled because of bug 18671
 )