426 Connection closed; transfer aborted.

Problem:
An FTP transfer fails with the following message found in LastErrorText:

426 Connection closed; transfer aborted

Solution:
A local firewall may be blocking the connection. Try switching between Active and Passive mode and try again.

See these examples:

ASP: Active and Passive Modes in FTP
SQL Server: Active and Passive Modes in FTP
C#: Active and Passive Modes in FTP
C++: Active and Passive Modes in FTP
MFC: Active and Passive Modes in FTP
C: Active and Passive Modes in FTP
Delphi: Active and Passive Modes in FTP
Visual FoxPro: Active and Passive Modes in FTP
Java: Active and Passive Modes in FTP
Perl: Active and Passive Modes in FTP
PHP: Active and Passive Modes in FTP
Python: Active and Passive Modes in FTP
Ruby: Active and Passive Modes in FTP
VB.NET: Active and Passive Modes in FTP
Visual Basic: Active and Passive Modes in FTP
VBScript: Active and Passive Modes in FTP