Thanks a lot for the hint. I have filed a support request to weonlydo.
in our software we're using the WeOnlyDo SFTP server. We connect to it via the current version of WinSCP. What bothers me is that there isn't any confirmation dialog showing up when overwriting a file at the server side via WinSCP. In the settings of WinSCP all confirmations are turned on. :/
Does the FTP server needs to send some sort of command to indicate showing this dialog?