This is Perl module Data::Recursive::Encode. INSTALLATION Data::Recursive::Encode installation is straightforward. If your CPAN shell is set up, you should just be able to do % cpan Data::Recursive::Encode Download it, unpack it, then build it as per the usual: % perl Makefile.PL % make && make test Then install it: % make install DOCUMENTATION Data::Recursive::Encode documentation is available as in POD. So you can do: % perldoc Data::Recursive::Encode to read the documentation online with your favorite pager. Tokuhiro Matsuno