Fling was working correctly on a Windows 10 Pro 64-bit OS. On upgrading to Microsoft Visual C++ 2015 Redistributable Update 3 fling stops working. Fling can be made to work by going into FTP properties, and choosing 'Test FTP Settings', during this time a pop up appears that seems to re-apply the SSL certificate. Is there a way to invoke this pop-up without having to click on the previously stated options? Thanks, Brian.