Introduction 

The SmartFTP FTP Library component (COM) provides file transfer functionality for the FTP protocol. It offers a wide range of features which allows reliable and secure file transfers (SSL/TLS). The component takes advantage of the COM technology which makes it possible to use it in numerous environments as Visual Basic, Visual C++, JavaScript/VBScript, VB.NET, C#.NET, Delphi, etc. 

General Features 

• Upload and Downloads with with resume capability
• Rename, Make and Remove Directory
• Move/Rename and Delete File
• IPv4 and IPv6
• International Domain Names (IDN)
• UTF8 / Unicode Support
• SOCKS4, SOCKS4A, SOCKS5, HTTP Proxy Support
• Support for 64-bit File Size
• File Logging
• Transfer Speed Limits (Global, per Connection)
• Multi Language Support
• Synchronous (Blocking) and Asynchronous (Non-blocking) calls.
• Native Windows x64 (64 bit) support.
• Windows Vista certified.
• FIPS 140-2 compliant

FTP Features

• Secure Transfers (SSL/TLS)
• FXP (Server to Server Transfers)
• Compression (MODE Z)
• Enhanced NAT/UPnP/ICS/ICF Support
• Transfer Integrity (XCRC, XMD5, XSHA1)
• Machine Readable Listing (MLSD)
• FTP Proxy Support (Wingate, Checkpoint FW-1, Transparent, etc)
• Set/Get Modified File Time (MDTM, UTIME, MFMT)
• Local Port Limitation
• Set Unix Attributes (SITE CHMOD Wrapper)
• FTP Parser (Unix, MLST, VMS, MVS, DOS, NT, HP-UX, zOS, VxWorks, ...)
• IP Repeater

SFTP Features

• Protocol Version 1-6
• Host Key Algorithms: RSA (any size) and DSA (any size)
• Encryption Algorithms: aes256-cbc, aes192-cbc, aes128-cbc,, blowfish-cbc, 3des-cbc, arcfour, cast128-cbc
• Key Exchange: DH group 1, DH group 14, DH group exchange, DH group exchange SHA256
• Authentications: password, publickey, keyboard-interactive, SecurID, hostbased, none
• Compression: zlib, Delayed compression (zlib@openssh), none
• HMAC Algorithms: hmac-sha1, hmac-md5, hmac-sha1-96, hmac-md5-96, hmac-ripemd160
• Performance: Optimized assembler for performance critical algorithms.
• Interoperability: Tested against all public available SFTP/SSH server implementations. Automatically uses workarounds for faulty implementations.