How do I create a Visual Studio add in to analyze code

Question

I want to have a go at writing add ins for visual studio that can play around with the code like resharper does e.g. look at a line of code and then suggest which "using statements" need to be added.

This is purely for educational purposes and a bit of fun, however I have no idea where to get started with the extensibility model. Can anyone point me in the right direction of some good resources

Answer 1

I'd start with the Common Compiler Infrastructure if you are analyizing code compiled to MSIL.