Thank you , thank you, thank you - I cant thank you enough number of times for the example.

I had probably looked at that piece of code 4-5 times yet it didn't strike me as the relevant.

So I reviewed what POE is doing in the sub TransactionDone section in http://cpansearch.perl.org/src/APOCAL/POE-Component-Server-SOAP-1.14/lib/POE/Component/Server/SOAP.pm. I also looked at http://cookbook.soaplite.com/#changing%20method%20name%20in%20response including the discussion section and came up with the following cgi which worked perfectly.

use SOAP::Transport::HTTP;

my $server = new SOAP::Transport::HTTP::CGI
                        ->serializer(MySerializer->new)
                        ->dispatch_to('Demo')
                        ->handle();

BEGIN {
        package MySerializer;

        @MySerializer::ISA = qw/SOAP::Serializer/;

        sub envelope {
                $_[2] = SOAP::Data->name($_[2])->uri($_[0]->uri()) if 
+$_[1] =~ /^(?:method|response)$/;
                shift->SUPER::envelope(@_);
        }
}

package Demo;

use SOAP::Lite;

sub hi {
  return 'Hello';
}
[download]

After that got working perfectly I had to do the following to get it all working under mod_perl

1. Added a Location section as follows

        <Location /session>
                Order Deny,Allow
                SetHandler perl-script
                PerlHandler SOAP::Apache
        </Location>
[download]

2. Added the following in my startup handler

package MySerializer;

@MySerializer::ISA = qw/SOAP::Serializer/;

sub envelope {
        $_[2] = SOAP::Data->name($_[2])->uri($_[0]->uri()) if $_[1] =~
+ /^(?:method|response)$/;
        shift->SUPER::envelope(@_);
}


package SOAP::Apache;

use SOAP::Transport::HTTP;

my $server = SOAP::Transport::HTTP::Apache
                ->serializer(MySerializer->new)
                -> dispatch_to(... ... ...);

sub handler { $server->handler(@_) }

1;
[download]

Currently the XML looks great under SOAP::Trace - will have more feedback tomorrow after the .Net client gives it a shot.

Again thanks a lot for guiding me.