Indeed, there's neither password nor key in your script. So no wonder that the script does not authenticate.

In any case, do not try to debug your batch file by running it from Windows Explorer. That way it's hard to spot any errors. Run the batch file from the Command Prompt – cmd. And enable logging in WinSCP (/log=...).

See also https://winscp.net/eng/docs/troubleshooting#scripting

I think your open command is wrong. You have:

It should be:

Hi Martin
Believe me, before I posted here I tried out all instructions you propose me – for example first I installed an ssh-rsa key in ssh/authorized_keys and ssh/Kown_hosts and then I tried a bat file:

On the screen WinSCP flashes for less than a second and then nothing happens, Leancanvas_Bildschoen.pdf is not transferred. When opening WinSCP again, it starts at .../blog

That's why I asked for help and hope now, you tell me where the bug is
Thanks

This is quite broad question.
Please start here:
Schedule file transfers (or synchronization) to FTP/SFTP server
If you have specific problems with specific parts of the task, please ask specific questions.

Hi
I'm trying to establish a cron job in the Windows 11 Task Scheduler. It should open the remote server (trueprojekte.com) at the root (/httpdocs/foto) and connect to the local folder (E:\foto) and then do the synchronization from the remote server towards E:\foto.
Til now I only did simple jobs in the scheduler, this one is too complicated for me. Would anybody be so kind and describe it for me?
Thanks
Thomas
(using the latest version of WinSCP on Windows 11 actual version)