Hi all, when i try to watch this file http://bt.base0.net/torrents/%5BXF%5DHunte...%29.avi.torrent

I get an error at my WM 10 with Codec C00D109B i already tried several sites but nothing works
Somebody help pls

Well, torrent files aren't meant to be watched. You download the small file (kinda like a blueprint) that directs to actual file on server.

You need a bit torrent client to open .TORRENT file to download the actual AVI file.
Bit Comet, Azureus are a few that come to mind.

i am not stupid, i know what a torrent is and what its meant to do. But when i click it it opens WM

I assume you mean WMP (Windows Media Player)?

Anyway, are you sure it's a valid link? Go to the actual tracker website.
Reinstall a BitTorrent client (I assume you have one). Upon install, prompt it to be the default application for bittorrent. (Associate .TORRENT with the client). Reboot.

Next time you click on it, it should open with default BT client. Or check the .torrent association within the preference/options of the program. Otherwise, you can manually change the association within windows.

Hope that helps.