Protecting my code from reverse engineering

Question

As discussed in similar questions here and here I want to protect my code from reverse engineering.

My situation is as Simucal describes in his (excellent) answer h

Answer 1

Most obfuscators allow you to specify which methods/classes you want to keep from being obfuscated. SmartAssembly for instance let you mark methods or classses with attributes, while others let you select the methods in a UI to exclude from the process. You ought to be able to have pretty fine grained control of the process, and so you can have your cake and eat it.

You will however run into problems if you are using reflection.