Please elucidate? (Preferably demonstrate.)

Its hard (cant test ATM), but it goes like this,
apache2 on win32 runs tracertfrontend.cgi which does  system 1, logtracertwithipcrun3.pl and redirects,
except logtracertwithipcrun3.pl blocks tracertfrontend.cgi

even if longtracertwithipcrun3.pl does another system 1... itself, STDIN/STDOUT/STDERR handles are still inherited (despite 0 flag), and it still blocks tracertfrontend.cgi

This scenario can work from (cmd.exe) console (no blocking), but not under whatever environment apache sets up (something like without console )

Proc::Background::Win32 tries to launch without inheriting handles, but it still blocks under apache

Win32::Process::Create/DETACHED_PROCESS combo seems to keep tracertfrontend.cgi from being blocked under apache

In reply to Re^9: Win32: Setting a layer with binmode causes problem with close() on Windows (PerlIO silently fails to close the file) by Anonymous Monk
in thread Win32: Setting a layer with binmode causes problem with close() on Windows by rovf

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