the log file as follows, I have deleted some no used info.
------------------------------------------------------------
> 2006-10-03 01:08:31.046 wget 
http://www.example.com/myfile.exe ; echo "WinSCP: this is end-of-file:$status"
! 2006-10-03 01:08:31.937 --13:08:35--  
http://www.example.com/myfile.exe
! 2006-10-03 01:08:31.937            => `myfile.exe'
! 2006-10-03 01:08:32.312 Resolving www.example.com... xxx.xxx.209.81
! 2006-10-03 01:08:32.609 Connecting to www.example.com[xxx.xxx.209.81]:80... connected.
! 2006-10-03 01:08:33.093 HTTP request sent, awaiting response... 200 OK
! 2006-10-03 01:08:33.093 Length: 3,572,677 [application/octet-stream]
! 2006-10-03 01:08:34.578     0K .......... .......... .......... .......... ..........  1%   34.35 KB/s
! 2006-10-03 01:08:35.140    50K .......... .......... .......... .......... ..........  2%  169.42 KB/s
! 2006-10-03 01:09:24.234  2900K .......... .......... .......... .......... .......... 84%    4.07 MB/s
. 2006-10-03 01:09:39.234 Waiting for data timed out, asking user what to do.
. 2006-10-03 01:09:39.234 Asking user:
. 2006-10-03 01:09:39.234 Host has not answered for 15 seconds.
. 2006-10-03 01:09:39.234 
. 2006-10-03 01:09:39.234 Wait for another 15 seconds? Pressing 'Abort' button will close session. ()
. 2006-10-03 01:09:40.750 Data has arrived, closing query to user.
! 2006-10-03 01:09:40.750  2950K .......... .......... .......... .......... .......... 85%  173.12 KB/s
! 2006-10-03 01:09:41.265  3400K .......... .......... .......... .......... .......... 98%   66.71 MB/s
! 2006-10-03 01:09:41.546  3450K .......... .......... .......... ........             100%   66.13 KB/s
! 2006-10-03 01:09:41.546 13:09:17 (85.40 KB/s) - `myfile.exe' saved [3572677/3572677]
< 2006-10-03 01:09:41.546 WinSCP: this is end-of-file:0
. 2006-10-03 01:09:44.328 Detected incoming data while idle
. 2006-10-03 01:10:14.828 Detected incoming data while idle
. 2006-10-03 01:10:45.453 Detected incoming data while idle
. 2006-10-03 01:11:16.109 Detected incoming data while idle
. 2006-10-03 01:11:46.828 Detected incoming data while idle
. 2006-10-03 01:12:17.328 Detected incoming data while idle
. 2006-10-03 01:12:47.828 Detected incoming data while idle