Your script has some errors.

First, my @sV = $ssh->cmd($cmd) doesn't work. Second, $ssh->close() doesn't work either. The best way is still what the module's documentation says:

#!/usr/bin/perl

use strict;
use warnings;
use Net::SSH::W32Perl;

my $host = 'host';
my $user = 'user';
my $pass = 'password';
my $cmd  = 'ls';

my $ssh = Net::SSH::W32Perl->new(
          $host, 
          debug => 1, 
          protocol => 2
);
$ssh->login($user, $pass); 
my ($stdout, $stderr, $exit) = $ssh->cmd($cmd); 
print $stdout, "\n";
exit;
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