Here is the log:
. 2013-01-10 10:43:41.273 --------------------------------------------------------------------------
. 2013-01-10 10:43:41.273 WinSCP Version 5.1.2 (Build 2816) (OS 5.2.3790 Service Pack 2)
. 2013-01-10 10:43:41.273 Configuration: D:\Programs\WinSCP.ini
. 2013-01-10 10:43:41.273 Local account: USER
. 2013-01-10 10:43:41.273 Working directory: D:\Programs
. 2013-01-10 10:43:41.273 Command-line: "D:\Programs\WinSCP.exe" /console=512 /consoleinstance=_4144_41 "/log=D:\logwinscp.txt"
. 2013-01-10 10:43:41.273 Time zone: Current: GMT-6, Standard: GMT-6, DST: GMT-5, DST Start: 3/10/2013, DST End: 11/3/2013
. 2013-01-10 10:43:41.273 Login time: Thursday, January 10, 2013 10:43:41 AM
. 2013-01-10 10:43:41.273 --------------------------------------------------------------------------
. 2013-01-10 10:43:41.273 Session name: IP (Ad-Hoc session)
. 2013-01-10 10:43:41.273 Host name: IP (Port: 22)
. 2013-01-10 10:43:41.273 User name: (Password: No, Key file: No)
. 2013-01-10 10:43:41.273 Tunnel: No
. 2013-01-10 10:43:41.273 Transfer Protocol: SFTP (SCP)
. 2013-01-10 10:43:41.273 Ping type: -, Ping interval: 30 sec; Timeout: 15 sec
. 2013-01-10 10:43:41.273 Proxy: none
. 2013-01-10 10:43:41.273 SSH protocol version: 2; Compression: No
. 2013-01-10 10:43:41.273 Bypass authentication: No
. 2013-01-10 10:43:41.273 Try agent: Yes; Agent forwarding: No; TIS/CryptoCard: No; KI: Yes; GSSAPI: No
. 2013-01-10 10:43:41.273 Ciphers: aes,blowfish,3des,WARN,arcfour,des; Ssh2DES: No
. 2013-01-10 10:43:41.273 SSH Bugs: A,A,A,A,A,A,A,A,A,A
. 2013-01-10 10:43:41.273 SFTP Bugs: A,A
. 2013-01-10 10:43:41.273 Return code variable: Autodetect; Lookup user groups: A
. 2013-01-10 10:43:41.273 Shell: default
. 2013-01-10 10:43:41.273 EOL: 0, UTF: 2
. 2013-01-10 10:43:41.273 Clear aliases: Yes, Unset nat.vars: Yes, Resolve symlinks: Yes
. 2013-01-10 10:43:41.273 LS: ls -la, Ign LS warn: Yes, Scp1 Comp: No
. 2013-01-10 10:43:41.273 Local directory: default, Remote directory: home, Update: Yes, Cache: Yes
. 2013-01-10 10:43:41.273 Cache directory changes: Yes, Permanent: Yes
. 2013-01-10 10:43:41.273 DST mode: 1
. 2013-01-10 10:43:57.944 --------------------------------------------------------------------------
. 2013-01-10 10:43:57.944 WinSCP Version 5.1.2 (Build 2816) (OS 5.2.3790 Service Pack 2)
. 2013-01-10 10:43:57.960 Configuration: PATH\WinSCP.ini
. 2013-01-10 10:43:57.960 Local account: USER
. 2013-01-10 10:43:57.960 Working directory: PATH
. 2013-01-10 10:43:57.960 Command-line: "PATH\WinSCP.exe" /console=512 /consoleinstance=_4144_41 "/log=logwinscp.txt"
. 2013-01-10 10:43:57.960 Time zone: Current: GMT-6, Standard: GMT-6, DST: GMT-5, DST Start: 3/10/2013, DST End: 11/3/2013
. 2013-01-10 10:43:57.960 Login time: Thursday, January 10, 2013 10:43:57 AM
. 2013-01-10 10:43:57.960 --------------------------------------------------------------------------
. 2013-01-10 10:43:57.960 Session name: USER@IP (Ad-Hoc session)
. 2013-01-10 10:43:57.960 Host name: IP (Port: 21)
. 2013-01-10 10:43:57.960 User name: user (Password: Yes, Key file: No)
. 2013-01-10 10:43:57.960 Tunnel: No
. 2013-01-10 10:43:57.960 Transfer Protocol: FTP
. 2013-01-10 10:43:57.960 Ping type: C, Ping interval: 30 sec; Timeout: 15 sec
. 2013-01-10 10:43:57.960 Proxy: none
. 2013-01-10 10:43:57.960 FTP: FTPS: None; Passive: Yes [Force IP: A]
. 2013-01-10 10:43:57.960 Local directory: default, Remote directory: home, Update: Yes, Cache: Yes
. 2013-01-10 10:43:57.960 Cache directory changes: Yes, Permanent: Yes
. 2013-01-10 10:43:57.960 DST mode: 1
. 2013-01-10 10:43:57.960 --------------------------------------------------------------------------
. 2013-01-10 10:43:58.069 Connecting to IP ...
. 2013-01-10 10:43:58.163 Connected with IP. Waiting for welcome message...
< 2013-01-10 10:43:58.538 220 FTP server (IBM 4690 TCP/IP FTP Version 1.0) ready.
> 2013-01-10 10:43:58.538 USER user
< 2013-01-10 10:43:58.679 331 Password required for ftpuser.
> 2013-01-10 10:43:58.679 PASS *********
< 2013-01-10 10:43:58.741 230 User ftpuser logged in.
> 2013-01-10 10:43:58.741 SYST
< 2013-01-10 10:43:58.804 215 OS 4690 operating system
> 2013-01-10 10:43:58.804 FEAT
< 2013-01-10 10:43:58.866 502 Unknown command.
. 2013-01-10 10:43:58.882 Connected
. 2013-01-10 10:43:58.898 --------------------------------------------------------------------------
. 2013-01-10 10:43:58.913 Using FTP protocol.
. 2013-01-10 10:43:58.929 Doing startup conversation with host.
> 2013-01-10 10:43:58.929 PWD
< 2013-01-10 10:43:58.991 257 "c:\" is current directory.
. 2013-01-10 10:43:59.007 Getting current directory name.
. 2013-01-10 10:43:59.007 Startup conversation with host finished.
< 2013-01-10 10:43:59.007 Script: Active session: [1] USER@IP
> 2013-01-10 10:44:06.538 Script: cd ej
. 2013-01-10 10:44:06.538 Changing directory to "ej".
. 2013-01-10 10:44:06.538 Synchronizing current directory "c:\".
> 2013-01-10 10:44:06.538 CWD c:\
< 2013-01-10 10:44:06.601 250 CWD command successful.
> 2013-01-10 10:44:06.601 CWD ej
< 2013-01-10 10:44:06.679 250 CWD command successful.
. 2013-01-10 10:44:06.679 Getting current directory name.
> 2013-01-10 10:44:06.679 PWD
< 2013-01-10 10:44:06.741 257 "c:\ej" is current directory.
< 2013-01-10 10:44:06.741 Script: c:\ej
> 2013-01-10 10:44:22.179 Script: ren ESCTRANS ESCTRANS.OLD
. 2013-01-10 10:44:22.179 Moving file "ESCTRANS" to "ESCTRANS.OLD".
> 2013-01-10 10:44:22.179 RNFR /c:/ej/ESCTRANS
< 2013-01-10 10:44:22.257 550 Unable to do a lookup on the file name specified.
. 2013-01-10 10:44:22.257 Asking user:
. 2013-01-10 10:44:22.257 Error moving file 'ESCTRANS' to 'ESCTRANS.OLD'. ("Unable to do a lookup on the file name specified.")
< 2013-01-10 10:44:22.257 Script: Error moving file 'ESCTRANS' to 'ESCTRANS.OLD'.
< 2013-01-10 10:44:22.257 Script: Unable to do a lookup on the file name specified.
> 2013-01-10 10:44:26.991 RNFR /c:/ej/ESCTRANS
< 2013-01-10 10:44:27.054 550 Unable to do a lookup on the file name specified.
. 2013-01-10 10:44:27.054 Asking user:
. 2013-01-10 10:44:27.054 Error moving file 'ESCTRANS' to 'ESCTRANS.OLD'. ("Unable to do a lookup on the file name specified.")
< 2013-01-10 10:44:27.054 Script: Error moving file 'ESCTRANS' to 'ESCTRANS.OLD'.
< 2013-01-10 10:44:27.054 Script: Unable to do a lookup on the file name specified.
< 2013-01-10 10:44:29.366 Script: ESCTRANS
> 2013-01-10 10:44:32.616 Script: bye
. 2013-01-10 10:44:32.616 Script: Exit code: 1
. 2013-01-10 10:44:32.616 Disconnected from server