Hello, Thank you for advise. It works correctly with parametre encoding and deletion following. > > $gSysOut =~ > s/[\x00-\x09\x11\x12\x14-\x1F\x81\x8D\x8F\x90\x9D]/_/g; Best regards KOIKEGAMI Takashi <m0nvoisin-totoro at yahoo.co.jp>