Hi Medderi, Now, I used the following command-line command: C:\Applications\VLC>vlc.exe --no-embedded-video --video-x=100 --video-y=100 --width=400 --height=400 Movie1080p_1.mp4 It looked like I can control the position(video-x,video-y) of the pop-up video window now, but NOT the size(width,height) ...