Adding/Importing invite(or ICS) to Calendar using EWS API

Hi All,

We wanted to process & add invite (ics) to attendee's calendar when they receive an invite which is from external senders using EWS API. 

This is for those users who have not set "Automatically process requests and responses from external senders" in the settings. 

Let us know if there is a way out.

Thanks,

Suchith.