First, make sure the Perl script is saved with the right encoding (Windows-1252 (cp1252) in my case; most text editors allow you to choose the encoding, and nowadays they mostly save in UTF-8 be default; if you want to keep it in UTF-8, then "use utf8;"). Then, this works for me on Windows 7: 
use Encode qw(encode decode);

$outname = encode 'cp1252', "accentué.txt";
open $outfile, $outname
   or die "\nIncapable d'ouvrir '$outname' en lecture\n";
$contenu = <$outfile>;
close $outfile;

print STDOUT encode 'cp1252', "\nContenu = $contenu\n";

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In reply to Re: opening accented file names by shrodi
in thread opening accented file names by memo.garciasir

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