AudreyWinter: Hum... now I get a nice message "please use launcher to activate the game". And here I thought I had the DRM-free version... still blond. Because there is nothing you can do with the launcher to activate. I remember that the first time around I registered with my serial, but I did not
activate the game. Because that is for proud SecuROM owners, right?
Anyway, the Troll Trouble DLC is checked in the "Downloadable content" section. I guess that is because I uninstalled using the Windows uninstaller, but didn't delete any of the files that were left in the installation folder, I only made sure there was no trace of the witcher2.exe file and pack0.dzip. So it seems that DLC remains, unless you delete it manually.
Of course that doesn't help me too much now, because I can't play, because the game wants to be activated. Seriously weird...