Calling an external application (i.e. Windows Calculator) in a GWT web application

Question

I am trying to call an external windows application (i.e. calc.exe) when a user clicks on a button in a GWT web application. Is there a way on how to do it?

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Answer 1

You cannot do it. Browsers do not allow access to executable files on a user's computer. It would have been a dream-come-true for every hacker out there.