http://bugs.winehq.org/show_bug.cgi?id=16046
--- Comment #3 from Rico kgbricola@web.de 2008-11-20 07:19:34 --- Please cd to the directory, where you installed Gothic3 into, first.
Also try a clean .wine prefix. It seems you have a garbled one (Why F: ..?).
The SharedBase.dll should be in the same directory as the Gothic3.exe.