Hi everybody,
I'm new to Winscp.
I try to send file automatically with Winscp on a SFTP server.
When I connect manually with the GUI, I have no problem : I can connect, send files, get files, ...
But now, I want to send file automatically (with schedulded tasks) using Powershell.
To do it, I execute this command : 
    PS c:\Program Files (x86)\WinSCP> powershell c:\myscript.ps1
 
Here is the content of my script to send the file automatically.
    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 = "xxx.xxx.xxx.xxx"
    $sessionOptions.UserName = "my_user"
    $sessionOptions.Password = "my_password"
    $SessionOptions.SshPrivateKeyPath = "c:\my_private_key.ppk"
    $sessionOptions.SshHostKeyFingerprint = "ssh-rsa 1023 95:5d:61:f4:c3:bb:1d:54:29:0e:55:6d:e5:c1:c8:26"
 
    $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("c:\testfile.txt", "./", $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
}
 
The result of this script is : 
    The host key was not verified
 
I'm disappointed, because I really don't know how to do.
Can somebody help me?
Thank you.
I'm still looking for.