I think I've managed to re-create the situation you are seeing. I believe you are suffering from buffering.

Please try the following code and report your results. This isn't intended as a complete solution, but rather a diagnostic to understand your problem. 

#! perl -slw
use strict;
use Win32::Socketpair qw[ winopen2 ];

## Run the command and get a bi-direction pipe to it.
my( $pid, $pipe ) = winopen2( 'RunMe.exe',  $ARGV[0 ] // 10 );

## preload the childs input buffer with the answer to the prompt;
print $pipe "\n";

## give the kid a chance to say whatever it has to say
sleep 2;

## a nonblocking read to grab whatever has made it through the buffers
## which if the kid produced less output than the size of its output b
+uffer
## and didn't flush them, may be nothing at all
my $results = '';
sysread( $pipe, $results, 65536, length $results );

close $pipe;

print for split "\n", $results; ## May produce no output

[download]
With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

The start of some sanity?

In reply to Re^5: Stop a .exe by BrowserUk
in thread Stop a .exe by anshumangoyal

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.