Get error output in live [C#]

Hi, is it possible to get the return of my error output in live when I execute a command with :

Actually ffmpeg use the error output to show many information of the encoding process and i would like to parse it while the encoding process is still running.

Indeed i don't know how to get the standard output in live too.

Thx.

No. WinSCP is not the right tool to execute remote commands. WinSCP is a file transfer client.