okay . .today my usb-c adapter came and i could connect a real mouse to the laptop.
After the mouse is connected you can zoom in and out in the game as normal.
also this works now with software emulation (e.g. AutoHotKey).
Other software mouse emulation tools (e.g NeatMouse) did not work either without a real mouse connected.
So , same Problem still 10 Years later .. i guess it will stay be a mistery
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But the good thing is ... a Laptop Mouse isnt expensive
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