in reply to various questions about Win32::Process

You could use Win32::Socketpair::winopen2_5() 

#! perl -slw
use strict;
use Win32::Socketpair qw[ winopen2_5 ];

( $pid, $sock ) = winopen2_5( 'perl.exe', q[-E"say 'hello'; warn; die;
+"] );
shutdown $sock, 1;
print while <$sock>;
close $sock;

__END__
C:\test>winopen2_5
Warning: something's wrong at -e line 1.

Died at -e line 1.

hello

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