Download WinSCP 5.7.7 for BizTalk 2016 (or 5.15.4 for BizTalk 2020)
According to BizTalk 2016 install requirements, if you want to use the SFTP adapter, you need to install a specific version (5.7.7) of WinSCP. If you follow the link on that page, it takes you to the current release, and there’s no obvious way to find the previous downloads. BUT – see the note below. […]