ISO-8859-2 characters in the attachement name

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When I use ISO-8859-2 (CE) characters (ÃÃ,©ÃƒÃ,¡ÃƒÃ,¶őÃÃ,¼űÃÃ,ºÃƒÃ,³ÃƒÃ,­) in the attachement filename, that is not show up in the attachement list. In the message file's header the attachement parameter is: name*=ISO-8859-2' '......