1. Download, unzip, and run K-Romanizer.exe.
2. Confirm that the icon 韓 is nested in the system tray area:
3. Highlight the whole text in a field and press the given key combo.
4. If K-Romanizer does not work in OCLC Connexion, try to run it as administrator with a right click.
N.B. Word division has to be first done manually according to the ALA-LC Korean Romanization and Word Division.