How to activate/install php - imap (XAMP)

Web applications osticket require IMAP - PHP on web server: "Inbound Email cannot function without the IMAP c-client libraries enabled/compiled".

All that I need to do is to open php.ini file and enable IMAP.

If you don't use XAMPP, find php.ini file in your server directory. Remove ";" to enable PHP - IMAP