To load the plug-in, launch MicroStation's MDL Application manager by going to the Utilities menu and selecting the "MDL Applications" menu option. When the manager dialog appears, find DGN2HSF in the Available Applications group box, select it and then press the "Load" button. Another way to load the DGN2HSF plug-in is to define an environment variable MS_DGNAPPS=DGN2HSF, which will enable automatic loading of the DGN2HSF plug-in when MicroStation starts up. To confirm that DGN2HSF is properly loaded, the DGN2HSF entry should be present in the "Loaded Applications" list in the MDL Application manager dialog.
To export a DGN file to HSF, load your DGN file into Microstation. Then go to the "Utilities" menu and select the "Key-in" menu option. When the "Key-in" dialog appears, select "dgn2hsf." When the export is done, a dialog box saying "DGN2HSF Export done!" should appear. If the export was successful, you will find the new HSF file in the same directory as the original file. It will have the same name as the original DGN file with an additional .hsf appended to it. For example, if your DGN file was named example.dgn, the exported file would be named example.dgn.hsf. Note that you should ensure the directory where your original DGN model resides has write permissions.
