$::folder = 'E:\FOLDER\Test\WEB';

##</code><code>##

use File::Spec::Functions qw/catfile/;
my $filename = catfile($::folder, $config->{licence});

##</code><code>##

my $folder = 'E:\FOLDER\Test\WEB';
{
       license => [ 'kit-licence.zip',
                    'kit-work.zip'
                   ],
       programs => [..

##</code><code>##

use File::Spec::Functions qw/catfile/;
my $filename = catfile($::folder, $config->{licence});