A) Just adding the full path to the DLL in the additional assemblies textbox should be enough to get it to load when the script is executed. It will load if it's a C# assembly DLL.
B) The Script operator has its own angle axis methods that you can use to get a quaternion:
B) The Script operator has its own angle axis methods that you can use to get a quaternion:
Code:
var quat = new Quat(new AngAxis(vector, angle));