The OpenWindows Workspace=>Utilities=>Save Workspace function writes or rewrites a user's .openwin-init file when it saves the current configuration of the workspace screen. So after each time you use the Save Workspace pulldown menu selection, or edit .openwin-init, check your .openwin-init file and make sure the htt command precedes any line that starts an application that takes Korean character input.
Such placement of this command ensures future correct connection to htt if the OpenWindows system is restarted later. A manual edit to .openwin-init will be overwritten the next time you use the Save Workspace function. You can save and use your edits by first exiting and then restarting the OpenWindows environment.