Hello,
I'm developer of WinSCP FTP client.
http://winscp.net/
I got this report from on of my users:
http://winscp.net/forum/viewtopic.php?p=51452#51452
And I was able to reproduce it againsr your FTP server (ftp.drivehq.com).
Clearly your server requires PASV/PORT command before MLST. What does not make any sense as MLST command does not make use of data channel. I haven't seen any other FTP server before with such requirement.
See attached transcript of communication using Windows FTP command-lione client.
Thanks for any feedback.
Martin Prikryl