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perl does not &quot;register&quot; what is installed so there could be no reliable way to do this,<br />
<br />
when I am concerned that a machine does not have a module that I need I check for that module
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perl does not "register" what is installed so there could be no reliable way to do this,

when I am concerned that a machine does not have a module that I need I check for that module

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If you installed them by usual means (ppm, CPAN, etc.) then they are indeed registered, and it is reliable.<br />
<br />
As I said, PPM does keep an installed registry, and most people using Windows have ActivePerl and PPM<br />
<br />
ppm query *<br />
<br />
Or without that, these list, respectively, the modules that came with the Perl distro, and the modules you have added via CPAN or other standard means.<br />
<br />
perldoc perlmodlib<br />
perldoc perllocal<br />
<br />
<br />

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If you installed them by usual means (ppm, CPAN, etc.) then they are indeed registered, and it is reliable.

As I said, PPM does keep an installed registry, and most people using Windows have ActivePerl and PPM

ppm query *

Or without that, these list, respectively, the modules that came with the Perl distro, and the modules you have added via CPAN or other standard means.

perldoc perlmodlib
perldoc perllocal




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<div class="content wysiwyg-content">
Is there any command on windows to find out what perl modules are installed on a machine?<br />
Thanks.
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Is there any command on windows to find out what perl modules are installed on a machine?
Thanks.

Windows Command

Perl is a high-level, general-purpose, interpreted, dynamic programming languages with over 25 years of development. Perl 5 runs on over 100 platforms from portables to mainframes and is suitable for both rapid prototyping and large-scale development projects.  Perl gained widespread popularity as a Common Gateway Interface (CGI) scripting language, in part due to its regular expression and string parsing abilities. In addition to CGI, Perl is used for graphics programming, system administration, network programming, finance, bioinformatics, and other applications.