The short answer to your question is

use lib 'C:\h\COTS\Perl\lib';
[download]

That will probably fix you up for now, but please read the longer answer as well.

Longer answer:

Why? Why on earth are you using so many different pairs of libpaths?

If you are comfortable with saying to yourself "I know what I am doing and why", then by all means carry on.

But unless all three versions of perl installed at those different locations is the same version -- whether that version is a binary distribution from AS or Indigo, or if they are all home compiled from the same set of sources and with the same compile-time options -- then you are creating a potential nightmare of elusive bugs and failures.

And if they are all the same version, then why not consolidate on one location and one standard libpath structure?