_dlg.chkExecCommand.setSelected(userRoot.getBoolean(PREF_KEY_EXECUTE_COMMAND, false));
onChkExecCommand();
_dlg.txtCommand.setText(userRoot.get(PREF_KEY_COMMAND, "openoffice.org-2.0 -calc %file"));
LineSeparator preferredLineSeparator =
LineSeparator.valueOf(userRoot.get(PREF_KEY_LINE_SEPERATOR, LineSeparator.DEFAULT.name()));
_dlg._lineSeparators.setSelectedItem(preferredLineSeparator);
}