$service->autotype(0);
my $header = SOAP::Header->name(AuthHeader =>
                          \SOAP::Header->value(
                            SOAP::Header->name(Username => $username)->prefix('mypref'),
                            SOAP::Header->name(Password => $password)->prefix('mypref'),
                           )
                          )->uri('www.ABSnet.net')->prefix('mypref');