Again with 0.6 script
Opening track for playback: "3dydfy://www.youtube.com/watch?fb2k_title=Mouvements&fb2k_artist=Bir%C3%A9li%20Lagr%C3%A8ne&v=6ROlGn_dZuo"
3dydfy, opening mp4: download - foo_youtube, decode - foobar2000
3dydfy, opening mp4: download - foo_youtube, decode - foobar2000
Error: WSH Panel Mod (YouTube Track Manager v0.6 beta by Wilb): Erreur d'exécution Microsoft JScript:
'undefined' a la valeur Null ou n'est pas un objet
File: <main>
Ln: 2406, Col: 21
<source text only available at compile time>
Wave cache: finished analysis of "3dydfy://www.youtube.com/watch?fb2k_title=BIRELI%20LAGRENE%20-%20Before%20You%20Go%20%5BBefore%20You%20Go%5D&fb2k_artist=Bir%C3%A9li%20Lagr%C3%A8ne&v=OKGC8CnCuVE"
Wave cache: finished analysis of "3dydfy://www.youtube.com/watch?fb2k_title=Bir%C3%A9li%20Lagr%C3%A8ne%20%22Cleave's%20Changes%22%20-%20Acoustic%20%2F%20TV5MONDE%20%5BChange%20Partners%5D&fb2k_artist=Bir%C3%A9li%20Lagr%C3%A8ne&v=SWKV8VkAkfg"
Later I'll use your last script and uncheck "Bring to front when adding new files".