All of the programs print the message
Warning: no data dictionary loaded, check environment variable: DCMDICTPATH
then seem to produce strange results.
![Exclamation :!:](./images/smilies/icon_exclaim.gif)
The DICOM data dictionary could not be loaded. It has probably not been properly installed. The default location for this file (under Unix) is "/usr/local/dicom/lib/dicom.dic" but an alternive location can be specified by using the DCMDICTPATH environment variable. See the documentation file "dcmtk/dcmdata/doc/datadict.txt" for more details about using DICOM data dictionaries.