Use JScript from code

I have a few question about using JScript from code. In early versions this could be done by using the scripting runtime DLL by adding code and objects to a moudle and running the code after it.
my question are:
1. How can I do it with .net - I mean adding objects and code to a module and running it. is there a code example?
2. Is there a way to parse the script before, or I must run it to know if it is written correctly?
3. Is there a GUI component with syntax highlighting that I can include in my application?

Thanks.

[551 byte] By [OriN] at [2008-2-8]