You want to use Capture::Tiny, it works on win32, it does it through fork+exec and presents a beautiful interface 

use Capture::Tiny 'capture';
my ($out, $err) = capture {
   print "ya";
   Text::BibTeX ...
   system ...
};
print "captured out((($out))) err((($err)))";

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In reply to Re: STDERR going to string by Anonymous Monk
in thread STDERR going to string by philkime

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