No, no MS traffic at Zurich.
Just to be sure, because I don't know exactly how MyTrafficX handle schedules: when you install MyTrafficX, it replaces the MS default traffic, or it adds to it ?
It basically boils down if its installer disable/renamed or not the default traffic BGL from MS (which is named TrafficAircraft.bgl in FSX\Scenery\World\Scenery), or it replaces with its own file with the same name (the original size is 23MB).
Because, if the default traffic file has been renamed or overwritten, it's normal you don't see it.
And, even if it *hasn't* renamed or overwritten, it still might happen that, even if you don't SEE traffic, the parking places are still taken, so the default MS traffic models do not appear anyway.
So, the only way to be sure default MS traffic doesn't work at Zurich, is to disable MyTrafficX bgl instead and, if the original MS default traffic file was overwritten, restore the original file.