Looking on the internet deeply has found these results:

at the meeting is the most popular phrase on the web.

in the meeting 148,500,000 results on the web	at the meeting 1168,000,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
3. The minutes shall also include a list of participants in the meeting. He say the general did everything you ask of him in the meeting. There are going to be several people in the meeting. Good, start today in the meeting with Schwimmer... I mentioned her in the meeting last week. I believe that without a strong gesture from the Commission in the meeting tomorrow, this umpteenth Parliament resolution will be useless. Jason, come sit in the meeting with us. This is exactly why you weren't included in the meeting today.	I were at the meeting this evening. I'll see you both at the meeting. You seemed a little off today at the meeting. You were good at the meeting. Missed you at the meeting this morning. The motion for a resolution as amended was adopted unanimously at the meeting of 19 February 2002. I should like to ask the Commissioner what actually happened at the meeting yesterday. Let me speak to them at the meeting before the vote.

in the meeting

148,500,000 results on the web

at the meeting

1168,000,000 results on the web

More popular!

3. The minutes shall also include a list of participants in the meeting.
He say the general did everything you ask of him in the meeting.
There are going to be several people in the meeting.
Good, start today in the meeting with Schwimmer...
I mentioned her in the meeting last week.
I believe that without a strong gesture from the Commission in the meeting tomorrow, this umpteenth Parliament resolution will be useless.
Jason, come sit in the meeting with us.
This is exactly why you weren't included in the meeting today.

I were at the meeting this evening.
I'll see you both at the meeting.
You seemed a little off today at the meeting.
You were good at the meeting.
Missed you at the meeting this morning.
The motion for a resolution as amended was adopted unanimously at the meeting of 19 February 2002.
I should like to ask the Commissioner what actually happened at the meeting yesterday.
Let me speak to them at the meeting before the vote.