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