Hi xiper, as BrowserUk has suggested earlier, there is a problem with forking under Windows. The cure is to create two separate instances of Shareable, one in child and one in parent. So the require should be after the fork. I modified the code to below and it ran without problems.

use strict;
$|++;

# do some unrelated forking with $share in scope
unless( fork ) { exit 0 }

require Win32::MMF::Shareable;
tie( my $share, 'Win32::MMF::Shareable', 'share' ) || die;
$share = 'foo';

# make sure child exits before continuing
sleep 1;

# set/get crashes
print "----before\n";
$share = 'bar';
my $temp = $share;
print "----after\n";
[download]

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