Re: limit download or upload bandwidth in script
                Both 
https://winscp.net/eng/docs/scriptcommand_get#speed
https://winscp.net/eng/docs/scriptcommand_put#speed
        get and put commands have -speed switch:
https://winscp.net/eng/docs/scriptcommand_get#speed
https://winscp.net/eng/docs/scriptcommand_put#speed