Hi There I don't know if I have understand your question correct, but my answer is, to what I have undertand :-) : I would create a new header file, called DllInterface.h which will declare all the functions/methods that you want to export. Afterwards, create a new class called CreatorDll, which will implement all the original methods. In this class, in your cpp file, only include all the header files you want to hide. In the corresponding header file include the Interface file. If you have some classes which you want to offer users of the dll, make creator functions in your creator class, which returns with instances of the corresponding classes. Then the places where you want to use the dll, only include the headerfile for the creator. This is the way I do, when I want to export some methods of class, which perhaps uses a lot of classes. I hope this gives you an idea, or maybe can help you in the wanted direction. Best regards, Søren Madsen Denmark