sorry, but I can't see why, if the keyboard has " above char 2, you should change the driver settings, so it will not give the correct output?

and, the keyboard layout and the language settings are unrelated!
so are the regional settings.
they are all three different selections and again, you should not screw up the keyboard one in your trial to fix some other.

one more,
if the software is so poorly designed that it can't handle dates properly, you should contact the provider and ask them to fix it.
what you are trying to do is just a workaround and will fail in the long run.
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