JScript Fails Windows Server 2003

<job>
<reference object="WinSCP.Session" />
<script language="JScript">
 
try
{
    // Setup session options
    var sessionOptions = WScript.CreateObject("WinSCP.SessionOptions");
    sessionOptions.Protocol = Protocol_Sftp;
    sessionOptions.HostName = "example.com";
    sessionOptions.UserName = "user";
    sessionOptions.Password = "mypassword";
    sessionOptions.SshHostKeyFingerprint = "ssh-rsa 1024 xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx";
 
    var session = WScript.CreateObject("WinSCP.Session");
 
    try
    {
        // Connect
        session.Open(sessionOptions);
 
        // Upload files
        var transferOptions = WScript.CreateObject("WinSCP.TransferOptions");
        transferOptions.TransferMode = TransferMode_Binary;
 
        var transferResult = session.PutFiles("d:\\toupload\\*", "/home/user/", false, transferOptions);
         
        // Throw on any error
        transferResult.Check();
         
        // Print results
        for (var enumerator = new Enumerator(transferResult.Transfers); !enumerator.atEnd(); enumerator.moveNext())
        {
            WScript.Echo("Upload of " + enumerator.item().FileName + " succeeded");
        }
    }
    finally
    {
        // Disconnect, clean up
        session.Dispose();
    }
}
catch (e)
{
    WScript.Echo("Error: " + e.message);
    WScript.Quit(1);
}
 
</script>
</job>