Re: Update-Search needs manual Proxy-Settings
WinSCP uses system-wide settings, if you have //Automatically detect proxy settings// selected (the default):
https://winscp.net/eng/docs/ui_pref_updates
If it does not work for you, please tell us how exactly do you have the system-wide settings set.
https://winscp.net/eng/docs/ui_pref_updates
If it does not work for you, please tell us how exactly do you have the system-wide settings set.