FTP unable to read/retrieve remote directory

Host OS: windows xp sp3
Remote ftp server : win server 2003 r2
port FTP - 21

1) Failed Scenario
Winscp version : 4.3.2 (Build 1201)
installation type:
a) upgrade from 4.2.9
b) clean installation

2) winscp 4.2.9
still works, other FTP apps works as well

ERROR TYPE:
a)Unable to retrieve remote directory
b) unable to establish a connection
c) can get/put

NOTES:
SFTP works fine on centos 5.5

Can you send me an email, so I can send you back a debug version of WinSCP to track the problem? Please include link back to this topic in your email. Also note in this topic that you have sent the email. Thanks.

Email sent.

Thanks.