I suggest IPC::Run3. 
perl -MIPC::Run3 -lw 
run3('./script.pl',undef,\$out,\$err);
print "STDOUT: $out";
print "STDERR: $err"
__END__

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In reply to Re^2: Script hangs when called via IPC::Open3 by codeacrobat
in thread Script hangs when called via IPC::Open3 by jeffa

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