Microsoft’s .NET Framework class library contains no
classes that will allow developers to access File
Transfer Protocol (FTP) services directly. KCommon’s
FTP component was designed to compensate for the fact
that .NET lacks FTP support. With this FTP component,
programmers can build either Windows Forms or ASP.NET
(Web Forms) applications that will allow users to send
or receive a single file or multiple files, using the
FTP protocol. Operations for synchronous and
asynchronous (using a callback or an event) transfers
are supported. KCommon supports passive mode, but does
not support active mode, which could cause problems
with poorly written firewalls. Recall that in passive
mode, the data flow is set up and initiated by the FTP
client, rather than the server. This means improved
security for the client computer, because it won’t
have to deal with data flow being set up by the
server. The component is written in C#. It is not
marked as CLS compliant. It does not support proxy
servers. The online description erroneously refers to
an FtpSession type (it should be Session).

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