Achim, The upcoming biber-2.4 has two new Perl dependencies: Class::Accessor and Data::Uniqid. Could you add those to the Cygwin distro when you get a chance? Thanks. Ken -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple