Using query strings is new to me, so please bear with me.

We're using DNN 6.1, IFrame 4.4
The site within the iFrame is not DNN.

Within the DNN site is a page with an iFrame. In the iFrame is an page on the external website where users will register for events.

The user will recieve an email that contains a query string. The query string contains both a user's ID and an event ID.. The query string is formatted like this:
https://mywebsite.net/Site/event.aspx...

How do I setup the iFrame query string parameters to grab the user's ID and event ID from the link in the user's email and pass it through the iframe?

I assume the value is Pass Through Query String. Would the Name be 'eqs'
How do I get the rest of the string to pass through.

Thank you for you help.

Thank you Vitaly.

If I understand correctly, I would use eqs in both the Name (left field) and the right field.

Am I correct?

Very good... thanks much.