I suppose you have not specified command-line parameters for WinSCP or specified them incorrectly. Show us your command-line.
Hi,
I implemented SSIS package from link "https://winscp.net/eng/docs/guide_ssis". when SSIS "ExecuteProcessTask" started its just opening UI of winscp insted of reading the content of script file and trying for the connection. Please suggest why it is behaving in this way.