WinSCP .NET Assembly winscp.dll is .NET wrapper around WinSCP scripting interface that allows connecting to a remote machine and manipulating remote files over SFTP, SCP or FTP session from .NET languages, like C#, VB.NET, PowerShell and others.

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, VBScript; Visual Basic for Applications (VBA), Perl or Python.

This feature is available only in the latest beta release.

First, you need to download and install the assembly.

1. Create an instance of WinSCP.SessionOptions class and fill in all necessary information to allow an automatic connection and authentication of your session.
2. Create an instance of WinSCP.Session class. Optionally you can hook handlers of some events of the class.
3. Open the session using Session.Open method, passing instance of your WinSCP.SessionOptions.

Once the session is opened, you can use any of the WinSCP.Session methods to manipulate remote files, e.g.,

• Session.GetFiles to download files,
• Session.PutFiles to upload files or
• Session.SynchronizeDirectories to synchronize directories.

Namespace: WinSCP

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",
                SshHostKey = "ssh-rsa 1024 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;
        }
    }
}

There are also other VB.NET examples.

Imports System
Imports WinSCP
 
Friend Class Example
 
    Public Shared Function Main() As Integer
 
        Try
            ' Setup session options
            Dim sessionOptions As New SessionOptions
            With sessionOptions
                .Protocol = Protocol.Sftp
                .HostName = "example.com"
                .UserName = "user"
                .Password = "mypassword"
                .SshHostKey = "ssh-rsa 1024 xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx"
            End With
 
            Using session As Session = New Session
                ' Connect
                session.Open(sessionOptions)
 
                ' Upload files
                Dim transferOptions As New TransferOptions
                transferOptions.TransferMode = TransferMode.Binary
 
                Dim transferResult As TransferOperationResult
                transferResult = session.PutFiles("d:\toupload\*", "/home/user/", False, transferOptions)
 
                ' Throw on any error
                transferResult.Check
 
                ' Print results
                Dim transfer As TransferEventArgs
                For Each transfer In transferResult.Transfers
                    Console.WriteLine("Upload of {0} succeeded", transfer.FileName)
                Next
            End Using
 
            Return 0
        Catch e As Exception
            Console.WriteLine("Error: {0}", e)
            Return 1
        End Try
 
    End Function
 
End Class

There are also other PowerShell examples.

try
{
    # Load WinSCP .NET assembly
    [Reflection.Assembly]::LoadFrom("WinSCP.dll") | Out-Null
 
    # Setup session options
    $sessionOptions = New-Object WinSCP.SessionOptions
    $sessionOptions.Protocol = [WinSCP.Protocol]::Sftp
    $sessionOptions.HostName = "example.com"
    $sessionOptions.UserName = "user"
    $sessionOptions.Password = "mypassword"
    $sessionOptions.SshHostKey = "ssh-rsa 1024 xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx"
 
    $session = New-Object WinSCP.Session
 
    try
    {
        # Connect
        $session.Open($sessionOptions)
 
        # Upload files
        $transferOptions = New-Object WinSCP.TransferOptions
        $transferOptions.TransferMode = [WinSCP.TransferMode]::Binary
 
        $transferResult = $session.PutFiles("b:\toupload\*", "./", $FALSE, $transferOptions)
 
        # Throw on any error
        $transferResult.Check()
 
        # Print results
        foreach ($transfer in $transferResult.Transfers)
        {
            Write-Host ("Upload of {0} succeeded" -f $transfer.FileName)
        }
    }
    finally
    {
        # Disconnect, clean up
        $session.Dispose()
    }
 
    exit 0
}
catch [Exception]
{
    Write-Host $_.Exception.Message
    exit 1
}

See overall JScript example or any other JScript example.

See overall VBScript example or any other VBScript example.

See overall VBA example.

See overall Perl example.