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