I have trouble using IPC::Open2 on Windows. I found some exmples online and wrote the code below. Based on what I've seen, it should work. 
#!perl
use strict;
use warnings;
use IPC::Open2;

my $pid = open2(\*OUT, \*IN, '| findstr hello');
my $sometext = <<END;
Hello, World!
END
print IN $sometext;
close IN;

my @found = <OUT>;
print join " ", @found;

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this codes just hangs when reading from OUT. I've tried using open2 before (with different programs) and never seems to get it to work. Am I doing something wrong?

In reply to open2 on windows by mangetsu

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