I don't suppose you've got any examples you can point me to?

This works for me on Windows Vista, connecting to a local linux box.

use warnings;
use strict;
use Net::SSH2;

my $buflen = 100;
my $buf = '0' x $buflen;
my $ssh2 = Net::SSH2->new();

$ssh2->connect('192.168.0.3')
 or die "Unable to connect Host $@ \n";
$ssh2->auth_password('user','password')
 or die "Unable to login $@ \n";

my $chan2 = $ssh2->channel();

$chan2->blocking(1);

$chan2->exec('pwd');

$chan2->read($buf, $buflen);

print $buf;

$chan2->close;
[download]

Allocating $buf like I've done above is not really necessary - the following should work just as well:

use warnings;
use strict;
use Net::SSH2;

my $ssh2 = Net::SSH2->new();

$ssh2->connect('192.168.0.3')
 or die "Unable to connect Host $@ \n";
$ssh2->auth_password('user','password')
 or die "Unable to login $@ \n";

my $chan2 = $ssh2->channel();

$chan2->blocking(1);

$chan2->exec('pwd');

$chan2->read(my $buf, 100);

print $buf;

$chan2->close;
[download]

See also the the Net::SSH2 test script for some examples of usage.

Cheers,
Rob