Re: Adding keys to an .ini file
                First, you really NEED to upgrade.
Keys are not added to an INI file. Use
https://winscp.net/eng/docs/scriptcommand_open
For the public part of the key, see:
https://winscp.net/eng/docs/guide_public_key
        Keys are not added to an INI file. Use
-privatekey switch of open command:
https://winscp.net/eng/docs/scriptcommand_open
For the public part of the key, see:
https://winscp.net/eng/docs/guide_public_key