Could be passive mode issue, try set IE to active port mode and see if it
works.
How to configure Internet Explorer to use both the FTP PORT mode and the FTP
PASV mode in the Windows Server 2003 Family
http://support.microsoft.com/?id=323446
if it does, to allow passive mode, ensure passive port are not block.. you
can try
Information About the IIS File Transmission Protocol (FTP) Service
http://support.microsoft.com/?id=283679
How To Configure PassivePortRange In IIS
http://support.microsoft.com/?id=555022
--
Regards,
Bernard Cheah
http://www.iis.net/
http://www.iis-resources.com/
http://msmvps.com/blogs/bernard/
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