.NET lacks FTP classes. KCommon FTP component lets programmers build .NET apps so users can send or receive files via FTP. Supports synchronous and asynchronous transfers. Supports passive but not active mode. Written in C#. Doesn’t support proxies.

FTP client library VB component provides direct and simple control of the FTP protocol from a Visual Basic (VB.NET) application program. Transfer, rename, delete, list, and append files. Create and remove server directories. Supports proxy servers.

The Xceed FTP Library is a high-performance ActiveX control that allows developers to easily add FTP capabilities to their Windows or Web based applications and provides complete access to the feature rich and firewall friendly FTP protocol.

FTP client library VB component provides direct and simple control of the FTP protocol from a Visual Basic (VB.NET) application program. Transfer, rename, delete, list, and append files. Create and remove server directories. Supports proxy servers.

FTP client library Delphi component provides direct and simple control of the FTP protocol from a Delphi application program. Transfer, rename, delete, list, and append files. Create and remove server directories. Supports proxy servers.

FTP client component library for Xbase+ provides direct and simple control of the FTP protocol from an Xbase++ application program. Transfer, rename, delete, list, and append files. Create and remove server directories. Supports proxy servers.

FTP client component library for FoxPro provides direct and simple control of the FTP protocol from a Visual Foxpro application program. Transfer, rename, delete, list, and append files. Create and remove server directories. Supports proxy servers.

FTP component C/C++ (.NET) library that provides direct and simple control of the FTP protocol from a C/C++ or .NET program. Transfer, rename, delete, list, append files. Create and remove server directories. Supports proxy servers. Royalty free.

The Xceed FTP Library is a high-performance ActiveX control that allows developers to easily add FTP capabilities to their Windows or Web based applications and provides complete access to the feature rich and firewall friendly FTP protocol.

FTP ActiveX to upload/download/delete files. Get FTP directory listing, upload directory trees with restart, xfer to/from memory, create/delete remote dirs, session logging, MGET/MPUT, proxy support, active/passive modes, binary/ascii modes.

FTP component to upload/download/delete files. Get FTP directory listing, upload directory trees with restart, xfer to/from memory, create/delete remote dirs, session logging, MGET/MPUT, proxy support, active/passive modes, binary/ascii modes.

.NET lacks FTP classes. KCommon FTP component lets programmers build .NET apps so users can send or receive files via FTP. Supports synchronous and asynchronous transfers. Supports passive but not active mode. Written in C#. Doesn’t support proxies.

SFTPBlackbox.NET is a comprehensive collection of managed components that add client-side and server-side support for SFTP (Secure File Transfer Protocol) to your .NET Framework applications. SFTPBlackbox.NET includes complete SSH protocol support.

The SocketTools .NET Edition consists of nineteen managed code components for Internet and intranet application development. All major Internet protocols are implemented, and both Visual Studio .NET 2003 and Visual Studio 2005 are supported.

The SocketTools Secure .NET Edition consists of nineteen managed code components for Internet and intranet application development. All major Internet protocols are implemented, and both Visual Studio .NET 2003 and Visual Studio 2005 are supported.

Leading FTP .NET Component for C#, VB.NET, and ASP.NET

HS FTP is a software library in C (supplied with full source code) which implements the client side of the File Transfer Protocol over TCP socket layer according to RFC 959

Kellerman FTP is a robust and easy to use .NET FTP component. It supports FTPS and proxy servers. Kellerman FTP has the most features of any FTP component available.

FTP component PowerBASIC library that provides direct and simple control of the FTP client protocol from an application program. Transfer, rename, delete, list, append files. Create and remove server directories. Supports proxy servers. Royalty free

FTP component dBASE library that provides direct and simple control of the FTP client protocol from a dBASE application program. Transfer, rename, delete, list, append files. Create and remove server directories. Supports proxy servers. Royalty free

Secure FTP client .NET 2.0 component that supports encrypted and non-encrypted FTP access to the servers for transferring files or complete directories. It supports old, very common, FTP protocol, but also secured FTPS (FTP+SSL) and SFTP (FTP+SSH).

SFTPBlackbox (VCL) is a comprehensive collection of native components that add client-side and server-side support for SFTP (Secure File Transfer Protocol) to your Delphi / Kylix applications. SFTPBlackbox includes complete SSH protocol support.

The Catalyst File Transfer ActiveX control enables developers to easily integrate file transfer functionality within their applications. The control implements the standard protocols for sending and receiving files over the Internet.