NORMALLY:
Smedge2 --executes--> Render.exe

MY-WRAPPED VERSION:
Smedge2 --executes--> RenderWrap.pl --executes--> Render.exe

##</code><code>##

C:\wrappers\RenderWrap.pl -some args
* - output etc *
^C
In cleanup. 

##</code><code>##

#!/usr/bin/perl -w
$|++;

open ( LOG , '>>c:\temp\wrapper.log' );
# debug
print LOG "#"x40, $/;
print LOG "PID : $$" , $/; 
print LOG join (',' , @ARGV) , $/;


my $mayabatch = 'mayabatch';

$SIG{TERM}=\&cleanup;
$SIG{KILL}=\&cleanup;
$SIG{INT}=\&cleanup;
$SIG{ABRT}=\&cleanup;
$SIG{BREAK}=\&cleanup;
$SIG{STOP}=\&cleanup;
$SIG{QUIT}=\&cleanup;

my %o;
$o{-file} = shift @ARGV;
my @args = @ARGV;

while ( @args ) {
 my $arg = shift @args;
 if ($arg =~ /-ses/) {
       $o{-s} = shift @args;
       $o{-e} = shift @args;
       $o{-b} = shift @args;
 }
 elsif ( $arg =~ /^-/  ) {
       $o{$arg}=shift @args;
 }
 else { warn "Unhandled arg $arg \n"; }
}

# blah blah, operations on args to wrap
# neatly.
#

my $child = open ( RENDER , "$command |" ) or die "Screaming $!$?\n";

while (<RENDER>) {
 print
};

print "Child exit status was $?" , $/;
exit $?;

sub cleanup {
 warn "In cleanup. \n";
 kill "HUP" , $child;
}