Archimbaud: To clear the error statement, you may have to remove a register entry :
1. tape regedit in the run option of the windows menu.
2. go to Current user settings (I think, but can't be sure now, working on a Linux comp).
3. go to software -> witcher 2 -> DLC or something like that.
4. You should see numbered entries to the right. Right click or double click (don't remember) to have a quick look on the value of the entries.
5. When you see the one that talks about troll trouble dlc, remove it from the register.
6. Restart the launcher, it should now work properly.
Thanks a lot for this , it worked .
Actually , the launcher can connect now but i can't find troll trouble in the DLC menu , where else can i download the DLC ?