First, the functions, SetAttributes and GetAttributes, must be specifically requested:

use Win32::File qw(:DEFAULT SetAttributes GetAttributes);
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Second, since you're using Win32::File, it doesn't do any good to try darwin. I eliminated darwin, and I deleted the eval. There was also a problem with &error_dialog being undefined, so I deleted that. Here's what I have so far:

#!perl

BEGIN {
    $|  = 1;
    $^W = 1;
}

use strict;
use warnings;
use Win32::File qw(
    :DEFAULT
    SetAttributes
    GetAttributes
);
        
my $name = '/root/Desktop/foo.txt';
my $attr = 0;

Win32::File::SetAttributes( $name, $attr );
Win32::File::GetAttributes( $name, $attr );
if ( $attr & SYSTEM ) {
    print "$name has SYSTEM set.\n";
}
if ( $attr & HIDDEN ) {
    print "$name is hidden.\n";
}
[download]

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