Are we using External connector license in ASP .Net Membership Provider for CRM 2011 on-premises?

May 28, 2013 at 6:15 AM
I would like to implement this open source software for one of my customers. Our requirement is like based on the security role of external parties/contacts in our CRM system, we would like them to download the documents from one of our custom entities. We would like to store the documents as attachment to custom entity.

Before workout on this solution I would like to know whether are we using External connector license for CRM on-premises? If yes then what is the cost for it? and how to implement it with this particular open source software? Please advise.