use strict;
use Win32::Process::Info;

my $pihandle = Win32::Process::Info->new();
my @procinfo = $pihandle->GetProcInfo();

my $ParentPID;
my %ProcNames;

foreach my $PIDInfo (@procinfo) {
    $ProcNames{$PIDInfo->{ProcessId}} = $PIDInfo->{Name};

    if ($PIDInfo->{ProcessId} == $$) {
        $ParentPID = $PIDInfo->{ParentProcessId};
		last;
    }
}

print "Parent's name is [", $ProcNames{$ParentPID}, "]\n";


if ( $ProcNames{$ParentPID} eq 'OpenWith.exe' or $ProcNames{$ParentPID} eq 'explorer.exe') {
	print 'Press ENTER to close the window: ';
    <>;
}
else{ print "..exiting normally\n"; }


##</code><code>##

Discipulus@works:D>perl parentpid01.pl

Parent's name is [cmd.exe]
..exiting normally


##</code><code>##


Parent's name is [explorer.exe]
Press ENTER to close the window: