I don't even know if this is possible, but hopefully it is. This script needs to run on Win32 and Win64. I need to run a perl script from a shell and change the environment of the shell.

I tried 
system("set VAR=5");

[download]
but that has no effect on the parent as I would suspect.

I have also tried using Win32::Process::Info to get the parent PID(hopefully there is an easier way). 
use Win32::Process::Info;

my $pi = Win32::Process::Info->new ();
my %subs = $pi->Subprocesses();

my $ParentPID;
foreach(keys %subs)
{
    foreach my $pid(@{$subs{$_}})
    {
        if( $pid == $$ )
        {
            print "Parent PID is $_\n";
            $ParentPID = $_;
        }
    }
}

my @info = $pi->GetProcInfo($ParentPID);

use Data::Dumper;
print Dumper \@info;

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but I don't know what to do with the parent PID to chenge the environment.

Thanks.

- Tom

In reply to Changing parent process environment variable by tcf22

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