The question makes no sense all. There is no such concept as "call as script". A script is, essentially, a set of instructions creating some object. Some of those objects are functions, so you can only call functions. But the idea of "calling them all" would also make no sense, because each function can be called with different parameters, they can be called in different order, and so on. This is not anything certain, can be nearly anything.
Here is the problem you have: you ask so many questions which makes no sense that they are often get automatically removed due to abuse reports, sooner than one can possible answer them. But in that case I already posted an answer which has gone with your question, but I think you really need some help with your misconception.
I do understand that you need to develop a Web browser in a .NET application, with some specific features, but I cannot see why would you really need it and that you really understand what you want to achieve. I think you don't understand it, by the reasons like those I explained above, sorry.