If you are not able to help yourself, you can report your problem on WinSCP support forum.
WinSCP support forum is monitored by WinSCP development team. Sensible posts, that follow reporting guidelines, get answered in two business days on average.
OpenLogic provides commercial-grade technical support for WinSCP. The support is backed, if necessary, by WinSCP development team.
WinSCP is included in OpenLogic certified library.
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