Installed via cpan module and tested fine on a:

Dell SC420 with Centos 3.5 (Recompiled Red Hat Enterprise Server 3, with enhancements), Celeron 2.53, 1GB RAM and perl 5.8.6 using:

#!/usr/local/bin/perl
use warnings;
use strict;
use Filesys::Type qw(fstype);

my $fs = '/home';
  warn "Not able to share with Windows"
    if (fstype($fs) ne 'vfat');

print fstype($fs) . "\n";
[download]

HTH.