Internet Explorer 11: File Download Dialog not appear

Hi, 

I've created a macro to automate downloading dynamic generated files from server with Internet Explorer 10 and previous version. But now, I was requested to enable the macro to work with Internet Explorer 11 on Windows 8.1. I tested the macro but when downloading the dynamic files, the file download dialog did not appear like pervious version, but just a bar at the bottom of the page. So the macro can not get the save button and automate to click the save button. 

I've searched via google but all solutions were for Internet Explorer 9 or previous. I can't search any solution for IE 11. Is there anyone can help me to solve this problem?

Thanks

WilliamWLC