Strictly speaking, standard streams are available if they are redirected or handled by a parent process. For example,
(on some versions of Windows (XP?), redirection doesn't work without explicitly specifying an interpreter (wperl), even if the script extension (.pl or .wpl) is associated with it). However, it is not possible to directly use the device CON and redirect to/from it.

In reply to wperl and standard i/o streams by wisgest
in thread wperl.exe vs perl.exe by Nalina

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