FOr instance change your server so that instead of the windows 404 error, you can have your own!
What server? Do you mean HTTP 404 error message? I do not understand what it has to do with WinSCP.
Before posting, please read how to report bug or request support effectively.
Bug reports without an attached log file are usually useless.
FOr instance change your server so that instead of the windows 404 error, you can have your own!