Robust .NET FTP/SSL Library for C# & VB.NET

Performance

If you are concerned about the performance of your application while connecting and transferring files and folders to an FTP or FTP/SSL server, then the Ultimate FTP component is perfect for you. It is highly optimized for socket connections and File Transfer Protocol and is especially helpful in FTP applications where performance is critical such as when transferring a large number of files and/or large files. Benefits include:

• Minimized used resources - use less memory footprint with faster execution times
• Performance - the maximum possible speed of data transfer and file management operations

The library also lets you set the bandwidth throttling by setting the MaxDownloadSpeed and MaxUploadSpeed properties of the Ftp class.

Easy-to-use and Fully Documented API

Ultimate .NET FTP Component offers flexibility, ease of use, and rapid development features without the complexities of working with the native socket class or in-depth knowledge of how Network Protocols are implemented. In most cases, only a few lines of code are required to perform an FTP upload and download in your application. The set of properties and methods is sufficiently rich to enable you to take advantage of many features. The library is written 100% in C# without any unsafe blocks to maximize its compatibility when using in other .NET languages and minimize permission requirements.

The component API is fully documented, making it easy to start writing code in any .NET languages like C#, VB.NET, J#, C++, or F# to connect and transfer files to your remote FTP servers. When the package is installed with full documentation integration option, the help topics for a marked type or member will show instantly when pressing F1 in the Visual Studio IDE.

Virtually Detect and Parse any FTP Directory Listing Format

There are a wide range of formats and writing a program from scratch that supports almost all of them potentially would be a nightmare. Don't worry: Our component can accurately detect and parse virtually any standard listing formats. Besides, if you encounter a rare one, you can handle the ListItemReceived item to implement a custom FTP listing parser.

Example:

• ListItemReceived event

Supports FTPS

The library offers a comprehensive interface for both standard FTP and secure FTP over TLS/SSL - also known as FTPS, The Ftp class also provides you events to verify the certificate and provide client certificate when requested by the server.

Some examples:

• Explicit or Implicit connection
• Verify server's certificate

Use the Same Code for FTP, SFTP, and ZIP Operations

Our Unified API lets you have the same file management code for FTP, SFTP, and ZIP. You can directly transfer items from one file system to another without using intermediate disk storage. The top benefit of having similar API across Ftp, Sftp, and Zip classes is that you spend less time to familiarize with a new network protocol or class.

Some examples:

• Uploading a file from another file system
• Downloading a file to another system
• Moving files to another system
• Mirroring files and folders on an FTP remote server to another system and vice versa

Advanced File Management

Advanced file management tasks such as synchronously or asynchronously list, recursively search, move, delete, upload, download, check existence, synchronize files and folders by wildcard masks or search criteria all can be done with a few lines of code, making remote file management easier than ever before.

Some Examples:

• Upload files and directories
• Control file upload process
• Upload files within a ZIP archive to FTP server on-the-fly
• Download files asynchronously
• Delete remote FTP items with advanced search conditions

Authentication Methods

In addition to basic username/password authentication, the library also supports username/password/account and client certificate authentication.

Some examples:

• Authenticate to an FTP server

Update File List On-the-fly

Do you appreciate the capability present in some FTP client programs that allows you to add and remove items while the transfer is still in progress? That feature is now present in our FTP, SFTP, and ZIP components, making it easy to add new items, remove, and update existing items in the progress list.

Multi-threading

An impressive feature in our FTP and SFTP products is the capability to transfer files and folders using multiple threads, allowing your programs to upload/download more files simultaneously. Combined with built-in Zlib stream or MODE Z enabled, the transfer speed would be three times faster than transferring in MODE B with a single thread.

Some examples:

• Download multiple files and directories
• Upload multiple items

When downloading a large remote file, you can split it into smaller chunks and download them asynchronously using the MultiPartDownload method. For more information, please have a look at this topic: Chunk file download

Supports for PowerShell and SQL-SSIS

With some simple steps, you can integrate UltimateFtp to the PowerShell or the SQL-SSIS package.

FIPS and more Security Features

The component supports the FIPS 140-2 compliant mode, and this mode is enabled automatically where only compliant algorithms are allowed. There are also classes for TLS/SSL and events for X509 certificate validation.

Modern Task-based Asynchronous Pattern

Our products support both event-based and task-based asynchronous operations. The online documentation has a number of examples demonstrating how to use the async and await (C#) or Async and Await (VB.NET) keywords with the component's asynchronous methods, making it easy for developers to start writing their asynchronous functions.

Some examples:

• Download remote items asynchronously