I gather you mean for distributing your script?

Both are pure perl modules, meaning they don't really need to be installed to work. Having the necessary files in the proper location, should be enough. However...

• Getopt::Long appears to be a standard module. That means that any normal perl installation should have it.
• Config::Auto is not a standrad module, however, it's a simple and plain Perl module. All you need is the "Auto.pm" file, in a subfolder "Config", which must be in a directory that can be found through @INC. For example, if you put the directory "Config" in a directory "lib" next to your script, the following line near the top of your script should suffice:

  use lib './lib';
  [download]

  It'll only work if the working directory, when your script is run, is the directory your script is in.

If that all still sounds too complicated, you should look into PAR.

Update: Uh-oh. I just looked at the top of the module Config::Auto. There's more to it than meets the eye. This module also requires XML::Simple — which in turn needs XML::Parser (or one of a few other XML parsing modules); and Config::IniFiles. Well OK, if on Windows, ActivePerl comes with XML::Parser included, so maybe it's not that bad... The other two are plain perl modules, so the mechanism as described for Config::Auto should still work.