ICE23 is only encountered during validation and may be displayed in the following formats:
- Error Control_First of dialog [DIALOGNAME] refers to nonexistent control [CONTROLNAME].
- [DIALOGNAME] has malformed tab order at control [CONTROLNAME].
- Error [DIALOGNAME] has dead-end tab order at control [CONTROLNAME].
- Error Control_Next of control [CONTROLNAME]<>links to unknown control.
[DIALOGNAME] resolves to the name of the dialog causing the error. [CONTROLNAME] is the name specified in the Control_First column of the dialog table.