diff -r pm-cb-master/lib/PM/CB/Control.pm pm-cb-master2/lib/PM/CB/Control.pm
17a18,20
>         if ($INC{'threads.pm'}) {
>             $SIG{QUIT} = sub { threads->exit };
>         }
45,47c48,52
<     $self->{to_comm}->insert(0, ['quit']);
<     $self->{communicate_t}->join;
<     $self->{to_gui}->insert(0, ['quit']);
---
>     if ($^O ne 'MSWin32' || ! $INC{'MCE/Util.pm'}) {
>         $self->{communicate_t}->kill('QUIT');
>         $self->{communicate_t}->join;
>     }
>     $self->{to_gui}->enqueue(['quit']);
diff -r pm-cb-master/lib/PM/CB/GUI.pm pm-cb-master2/lib/PM/CB/GUI.pm
676c676
<     $self->{to_control}->insert(0, ['quit']);
---
>     $self->{to_control}->enqueue(['quit']);
diff -r pm-cb-master/pm-cb-g pm-cb-master2/pm-cb-g
58,59c58,59
< use if $mce => 'MCE::Hobo';
< use if $mce => 'MCE::Shared';
---
> use if $mce => 'MCE::Child';
> use if $mce => 'MCE::Channel';
66c66
<     ? ('MCE::Shared', 'queue', 'MCE::Hobo')
---
>     ? ('MCE::Channel', 'new', 'MCE::Child')