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WinSCP .NET Assembly and COM Library

The WinSCP .NET assembly winscpnet.dll is a .NET wrapper around WinSCP’s scripting interface that allows your code to connect to a remote machine and manipulate remote files over SFTP, FTP, WebDAV and SCP sessions from .NET languages, such as C#, VB.NET, and others, or from environments supporting .NET, such as PowerShell, SQL Server Integration Services (SSIS), ASP.NET and Microsoft Azure WebSite.

The assembly is also exposed to COM, and as such it can be used from variety of other programming languages and development environments–e.g., WSH-hosted active scripting languages like JScript and VBScript, Visual Basic for Applications (VBA), Perl, and Python.

The library is primarily intended for advanced automation tasks that require conditional processing, loops or other control structures for which the basic scripting interface is too limited. The library is not a general purpose file transfer library. It particularly lacks support for interactive processing and as such it is not well suited for use in GUI applications.

You can write a script using the assembly that extends functionality of WinSCP GUI.

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Classes
Converting Script to Code Based on .NET Assembly
License

Classes

Namespace: WinSCP

Class	Description
ChmodEventArgs	Provides data for change of permissions event.
CommandExecutionResult	Represents results of Session.ExecuteCommand.
FailedEventArgs	Provides data for `Session.Failed` event.
FileOperationEventArgs	Provides data for abstract file operation event.
FilePermissions	Represents *nix-style remote file permissions.
FileTransferProgressEventArgs	Provides data for file transfer progress event.
OperationEventArgs	Provides data for abstract operation event.
OperationResultBase	Represents results of abstract batch operation.
RemoteDirectoryInfo	Represents data about remote directory.
RemoteFileInfo	Represents data about remote file.
RemovalEventArgs	Provides data for remote file removal event.
RemovalOperationResult	Represents results of file removal (`Session.RemoveFiles`).
Session	Represents session. Provides methods for manipulating remote files.
SessionException	Exception associated with the `Session`.
SessionLocalException	Exception associated with the `Session` originating from this assembly.
SessionOptions	Defines information to allow an automatic connection and authentication of the session. Is used with `Session.Open` method.
SessionRemoteException	Exception associated with the `Session`, originating from WinSCP console session.
SynchronizationResult	Represents results of synchronization (`Session.SynchronizeDirectories`).
TouchEventArgs	Provides data for remote file timestamp change event.
TransferEventArgs	Provides data for file transfer event.
TransferOperationResult	Represents results of file transfer (`Session.GetFiles` or `Session.PutFiles`).
TransferOptions	Defines options for file transfers.
TransferResumeSupport	Configures automatic resume/transfer to temporary filename.

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C# Example

There are also other C# examples.

using System;
using WinSCP;
 
class Example
{
    public static int Main()
    {
        try
        {
            // Setup session options
            SessionOptions sessionOptions = new SessionOptions {
                Protocol = Protocol.Sftp,
                HostName = "example.com",
                UserName = "user",
                Password = "mypassword",
                SshHostKeyFingerprint = "ssh-rsa 2048 xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx"
            };
 
            using (Session session = new Session())
            {
                // Connect
                session.Open(sessionOptions);
 
                // Upload files
                TransferOptions transferOptions = new TransferOptions();
                transferOptions.TransferMode = TransferMode.Binary;
 
                TransferOperationResult transferResult;
                transferResult = session.PutFiles(@"d:\toupload\*", "/home/user/", false, transferOptions);
 
                // Throw on any error
                transferResult.Check();
 
                // Print results
                foreach (TransferEventArgs transfer in transferResult.Transfers)
                {
                    Console.WriteLine("Upload of {0} succeeded", transfer.FileName);
                }
            }
 
            return 0;
        }
        catch (Exception e)
        {
            Console.WriteLine("Error: {0}", e);
            return 1;
        }
    }
}

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Converting Script to Code Based on .NET Assembly

When you find yourself limited by scripting capabilities, you may consider converting your script to code that uses WinSCP .NET assembly.

License

The WinSCP .NET Assembly is a free library: you can use it, redistribute it and/or modify it under the terms of the Mozilla Public License Version 2.0.

Note that the assembly interacts with WinSCP executable, which uses a different license, the GPL. Though as WinSCP is used as an executable, via its public scripting interface, not as a library, all you need to do to comply with the GPL license, is to keep GPL license file around.1