This module provides a Drupal Commerce off-site payment method for Zarinpal
which is an integrated internet payment system for Iranian users.

You have to download and put nusoap.php from
https://svn.apache.org/repos/asf/incubator/openmeetings/trunk/plugins/moodle_plugin/lib/nusoap.php
in "commerce_zarinpal/" directory for the module to work.