OK guys. I was able to bypassed this message. TO run Witcher you must uninstall all apps that are used to illegal stuff. Then you must clean your registry system. I have used Registry Shower 2007. If you want to do it manualy then go to : start-> run-> type "rtegedit" and remove all that are...
I have the same problem. I will clearf my registry (for all noobs - this can be done using registry shower 2007 for example) and I will try to launch it. I will write the results.