Foo Bar. If you dont give it any arguments it starts the CPAN. This works on Unix, Mac, and should be just fine on Windows especially Strawberry Perl. There are several other things that you can do with the cpan tool as well. Heres a summary of the current features which might be newer than the one that comes with CPAN. Creates the CPAN. CPAN Shell autobundle. A module module. Shows the primary maintainers for the specified modules C module module. How To Install Perl On Windows Server' title='How To Install Perl On Windows Server' />Show the Changes files for the specified modules D module module. Show the module details. This prints one line for each out of date module meaning, modules locally installed but have newer versions on CPAN. Each line has three columns module name, local version, and CPAN version. Install Water Meter Yorkshire Water Charges more. L author author. List the modules by the specified authors. Prints a help message. O. Show the out of date modules. Recompiles dynamically loaded modules with CPAN Shell recompile. Print the script version and CPAN.