Thanks for your ideas !

In fact, i was download from emule, then newsgroups and now from torrent.
You've got right with the method. I use some sites to have torrent files and use LW for download.

I'm not a pro (for sure !). I tried LW4 and think it works well. I paid for the LW5 for updates and support. I'm not sure to want to downgrade to LW4 after given my $ !
I contacted support and i'm waiting for an answer from them...

If i don't have a good solution, i'll change this f*@#ing LW with an other soft !