>
> 'Following works for both US and Dutch
> x = "=if(x,0,0)"
> y = Array("hello", "=w")
>
> ' Following works for US, but not in Dutch, why?
> y = Array("hello", "=if(x,0,0)")
>
The default argument separator for Dutch regional settings is ";"
For US the comma is used.

Try the following statement
y = Array("hello", "=if(x;0;0)")

regards,
Erik