Windows has no "internal method" to play mp3s. At best, you can have a codec that decodes .wav files encoded with the Layer-III codec (for example by the Fraunhofer Institut).

Your best bet short of manually decoding the mp3 stream or linking a mp3 player DLL is to launch the mp3 file through the shell facilities:

  # one of my favourite songs!
  my $mp3 = "Unknown Artist - 02 - unknown.mp3";
  system(qq{start "$mp3" "$mp3"});
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perl -MHTTP::Daemon -MHTTP::Response -MLWP::Simple -e ' ;    # The  
$d = new HTTP::Daemon and fork and getprint $d->url and exit;#spider
($c = $d->accept())->get_request(); $c->send_response( new   #in the
HTTP::Response(200,$_,$_,qq(Just another Perl hacker\n))); ' #  web
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