从C＃回调VBScript

I'd liked to know whether it is possible to call a function in VBScript from C#. Let me try to clarify. I'm using an application (Quick Test Professional or "QTP") that automates another application, mostly using VBScript. There is the ability, via an add in model, to extend the test functionality by writing add-ins to the testing application (QTP) that are .NET assemblies. The basic workflow is that the VBScript tests automate the test application, and can call methods on a class in the extensibility add in assembly to do more complicated things. This part works fine.I'd liked to know whether it is possible to cal