Havok don't working with C#. What i can do, that run a free version's havok on xna game studio? How many ways?
Havok only provides C++ headers and static libraries. The licensing terms of this free package prevent distributing it in a form that is amenable to C#. If, however, you are interested in purchasing Havok for C# development, you can contact our sales team and we can discuss solutions. Thanks!