Thanks a lot of letting me know that this will work in 5.6.1.

As you suggested, I removed "5.008003" from "Makefile.PL" and rebuilt the library. But, when I tried to execute a simple code to test this, it still gave an error as follows:-

Perl v5.8.3 required--this is only v5.6.1, stopped at /...../..../..../Tie/Autotie.pm line 3. BEGIN failed--compilation aborted at /.../.../.../plib/Tie/Autotie.pm line 3. Compilation failed in require at test.cgi line 5. BEGIN failed--compilation aborted at test.cgi line 5. and the sample code is

#! /path to perl

use lib "path to auto tie";
use Data::Dumper;
use Tie::Autotie 'Tie::IxHash';

tie %test_var, 'Tie::IxHash';

$tmp1 = 'MAIN';
$tmp2 = 'New';

$test_var{MAIN}{APP} = undef;
$test_var{$tmp1}{$tmp2} = undef;
$test_var{MAIN}{OP} = undef;
$test_var{MAIN}{Vxit} = undef;
$test_var{MAIN}{Exit} = undef;
$test_var{MAIN}{OP}{PRO} = undef;
$test_var{MAIN}{OP}{DEV} = undef;
$test_var{MAIN}{OP}{CON} = undef;

print Dumper(\%test_var);
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