I included that in my first reply to you, but I will add it in to my original post for clarity. Both 2012 systems are using active state perl 5.18.2 
C:\>perl -v

This is perl 5, version 18, subversion 2 (v5.18.2) built for MSWin32-x
+64-multi-thread
(with 1 registered patch, see perl -V for more detail)

Copyright 1987-2013, Larry Wall

Binary build 1801 [297964] provided by ActiveState http://www.ActiveSt
+ate.com
Built Feb 24 2014 11:06:47

Perl may be copied only under the terms of either the Artistic License
+ or the
GNU General Public License, which may be found in the Perl 5 source ki
+t.

Complete documentation for Perl, including FAQ lists, should be found 
+on
this system using "man perl" or "perldoc perl".  If you have access to
+ the
Internet, point your browser at http://www.perl.org/, the Perl Home Pa
+ge.

[download]

In reply to Re^6: Running a perl script as a system command in another thread hangs while main thread reading from STDIN by rmahin
in thread Running a perl script as a system command in another thread hangs while main thread reading from STDIN by rmahin

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