■ Causes After the Hancom Update provided by Hancom & Computer on or after June 24, 2024, there is a phenomenon where a pop-up stating that OCX control support has ended appears and the document is not converted when converting a Hangul document. This error occurs because Hancom no longer supports the OXC control due to security issues. ■ Solution Measures have been taken to enable the use of Hangul files after updating the whiteboard program. Check the latest updated version