use JSON; is a statement, not a program. What happens if you provide a program to run? 

Win8 Strawberry 5.8.9.5 (32)  Thu 08/05/2021 14:31:49
C:\@Work\Perl\monks
>perl -MJSON -e print(1)
1

Win8 Strawberry 5.8.9.5 (32)  Thu 08/05/2021 14:33:13
C:\@Work\Perl\monks
>perl -e "use JSON; print(1)"
1

Win8 Strawberry 5.8.9.5 (32)  Thu 08/05/2021 14:33:41
C:\@Work\Perl\monks
>perl -e "use strict; use warnings; use JSON; print(1)"
1

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Give a man a fish:  <%-{-{-{-<

In reply to Re^2: use 5.005 with perl v5.16.3 by AnomalousMonk
in thread use 5.005 with perl v5.16.3 by sijaanh

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