Development of that tool ended 6 years ago. Even at that time, it recommended that you upgrade to dcm2niix. The DICOM standard has evolved a lot since that time, with vendors now supporting enhanced DICOM. I strongly suggest you use dcm2niix:
  https://www.nitrc.org/plugins/mwiki/index.php/dcm2nii:MainPage
If you prefer a graphical interface, get MRIcroGL (Import/ConvertDICOMtoNIfTI menu item):
  https://www.nitrc.org/plugins/mwiki/index.php/mricrogl:MainPage

While I hope my legacy software is mature and robust, I am a full time scientist and instructor. I can not support old tools. It is an open source project, so you can always maintain and extend it as you wish.
  https://github.com/neurolabusc/MRIcron