A lot of aircrafts appear during a FSX session

[Yvezo]

Hello,
I get the situation described in the attached picture, sometimes, when I fly with other friends with JoinFs.
Have you any idea the reason and how I can get rid of these N700MS aircrafts?
Thanks and regards.
Yves

[tim arnot]

One of the people you are flying with has AI traffic turned on, and JoinFS set to broadcast it.

[Yvezo]

Thanks a lot for your input.
After investigation, it appears that 'boats' were turned on in my friend's FSX.
Problem is solved.
Best regards
Yves