"%winscp%" /ini=nul ^
           /log=C:TEMPwinscplog.txt ^
           /command "open scp://goofy:changeme@10.61.10.225/ -hostkey=""ssh-rsa 2048 d4:1c:1a:4c:c3:60:d5:05:12:02:d2:d8:d6:ae:6c:5d""" ^
           "put ""%outfile%"" /home/public/somedir/somesubdir/%basename%" ^
           "exit"

& $winscp "/ini=nul" `
           "/log=C:TEMPwinscplog.txt" `
           "/command" 'open sftp://goofy:changeme@10.61.10.225/ -hostkey="ssh-rsa 2048 d4:1c:1a:4c:c3:60:d5:05:12:02:d2:d8:d6:ae:6c:5d"' `
           "put `"" + $outfile + "`" /home/public/somedir/somesubdir/" + $basename `
           "exit"

& SomeUtility.exe @('param1','param2',"with$variable")

$params = @(
  '/ini=nul',
  '/log=C:TEMPwinscplog.txt',
  '/command',
  '"open scp://goofy:changeme@10.61.10.225/ -hostkey=""ssh-rsa 2048 d4:1c:1a:4c:c3:60:d5:05:12:02:d2:d8:d6:ae:6c:5d"""',
  ('"put ""' + $outfile + '"" /home/public/somedir/somesubdir/' + $basename + '"'),
  '"exit"'
)

& $winscp $params

try {
    # Load WinSCP .NET assembly
    Add-Type -Path 'WinSCPnet.dll'

    # Setup session options
    $sessionOptions = New-Object WinSCP.SessionOptions -Property @{
        Protocol = [WinSCP.Protocol]::Sftp
        HostName = '10.61.10.225'
        UserName = 'goofy'
        Password = 'changeme'
        SshHostKeyFingerprint = 'ssh-rsa 2048 d4:1c:1a:4c:c3:60:d5:05:12:02:d2:d8:d6:ae:6c:5d'
    }

    $session = New-Object WinSCP.Session

    try {
        # Connect
        $session.Open($sessionOptions)

        # Upload files
        $transferOptions = New-Object WinSCP.TransferOptions
        $transferOptions.TransferMode = [WinSCP.TransferMode]::Binary

        $transferResult = $session.PutFiles($outfile, "/home/public/somedir/somesubdir/$basename", $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 ("Error: {0}" -f $_.Exception.Message)
    exit 1
}

# Invoke the command line with --%
# All arguments after --% are used as-is from the original command.
& $env:winscp --% /ini=nul /log=C:TEMPwinscplog.txt /command "open scp://goofy:changeme@10.61.10.225/ -hostkey=""ssh-rsa 2048 d4:1c:1a:4c:c3:60:d5:05:12:02:d2:d8:d6:ae:6c:5d""" "put ""%outfile%"" /home/public/somedir/somesubdir/%basename%" "exit"

. 2017-03-04 15:32:24.387 Command-line: "C:Program Files (x86)WinSCPWinSCP.exe" /ini=nul /log=C:TEMPwinscplog.txt /command "open sftp://goofy:***@10.61.10.225/ -hostkey=ssh-rsa" 2048 d4:1c:1a:4c:c3:60:d5:05:12:02:d2:d8:d6:ae:6c:5d"" exit
. 2017-03-04 15:32:24.388 Time zone: Current: GMT-6, Standard: GMT-6 (Central Standard Time), DST: GMT-5 (Central Daylight Time), DST Start: 3/12/2017, DST End: 11/5/2017
. 2017-03-04 15:32:24.388 Login time: Saturday, March 4, 2017 3:32:24 PM
. 2017-03-04 15:32:24.388 --------------------------------------------------------------------------
. 2017-03-04 15:32:24.388 Script: Retrospectively logging previous script records:
> 2017-03-04 15:32:24.388 Script: open sftp://goofy:***@10.61.10.225/ -hostkey=ssh-rsa
. 2017-03-04 15:32:24.388 --------------------------------------------------------------------------

"/command" 'open sftp://goofy:changeme@10.61.10.225/ -hostkey=""ssh-rsa 2048 d4:1c:1a:4c:c3:60:d5:05:12:02:d2:d8:d6:ae:6c:5d""' `