TOPIC: E-mails after event has ended

Hello,
Is there any way to setup an e-mail that will send to all attendees for an event after the event is over?

You can use the "Email Registrants" tool to manually send emails to registrants, yes. Or, to automatically send follow up emails X days after an event, use the Reminders tool When you set the number of days, use a negative number and it will calculate AFTER the event... so a follow up instead of a reminder.

See this video:

Thank you,
This will be great but I get an error running the Cron Job.

<br />
<b>Notice</b>: Use of undefined constant __DIR__ - assumed '__DIR__' in <b>/home/content/69/11492769/html/KNP/libraries/import.legacy.php</b> on line <b>15</b><br />
<br />
<b>Warning</b>: require_once(__DIR__/platform.php) [function.require-once]: failed to open stream: No such file or directory in <b>/home/content/69/11492769/html/KNP/libraries/import.legacy.php</b> on line <b>41</b><br />
<br />
<b>Fatal error</b>: require_once() [function.require]: Failed opening required '__DIR__/platform.php' (include_path='.:/usr/local/php5/lib/php') in <b>/home/content/69/11492769/html/KNP/libraries/import.legacy.php</b> on line <b>41</b><br />

My PHP version is 5.3.24
here is a link to my php version info
knitnpurl.com/info.php

alos I have printed the magic constant __Dir__ and it does show a path. You can see this from the bottom of that link

I am not sure what is happening.

Please help me setup this Cron job to send these e-mails.