Re: open command not working in script, but works in console.
Please attach a full session log files from both tests.
To generate the session log file, use
/log=C:\path\to\winscp.log
command-line argument. Submit the log with your post as an attachment. Note that passwords and passphrases not stored in the log. You may want to remove other data you consider sensitive though, such as host names, IP addresses, account names or file names (unless they are relevant to the problem). If you do not want to post the log publicly, you can mark the attachment as private.