Wary 5.2.2:
Adding line inside /etc/profile doesn't work! (Don't know if I copied the line at the right place, as mentioned above!)
This works when completing /Startup/retrovol_tray:
Cordialement.#!/bin/sh
#exec retrovol -hide ${BGOPT} #BGOPT is exported from /usr/sbin/delayedrun.
#retrovol 0.10, -bg option no longer needed...
export OUTPUT_CHARSET=UTF-8
exec retrovol -hide