in reply to active perl

Read all about it here: ActivePerl.

ActivePerl is the industry-standard, commercial-grade Perl distribution used by millions of developers around the world for easy Perl installation and quality-assured code. ActivePerl comes pre-compiled for out-of-the-box installation and includes core Perl binaries, popular modules, the Perl Package Manager (PPM) and complete documentation. Whether you're using Perl for mission-critical applications or open source projects, ActivePerl offers significant time savings over open source Perl for installing, removing, upgrading, and managing common Perl modules.

ActivePerl comes in different editions to satisfy the spectrum of users - from large enterprises running Perl on distributed or critical applications to community developers building open source applications.

CountZero

A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James