Re: Unable to call WinSCP.com from external program.
Try adding /log=logfile parameter as the very first one and post the generated log.
Before posting, please read how to report bug or request support effectively.
Bug reports without an attached log file are usually useless.
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Network error: Network is unreachable
Unknown command '\open'.
Unknown command 'scp://root@host/etc/'.
Argument count: 2
Parameters: /command "open scp://root@host/etc/ -hostkey=""ssh-rsa 1040 xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx"""