Determine if GAC'ed & NGen'ed assemblies are being used

Question

How do I determine if the Native images are being used without the Loader verifing the signature of the assembly at runtime, or even using the GAC\'ed assembly?

I ha

Answer 1

You can see if the assembly came from the GAC pretty easily:

Assembly assembly = Assembly.GetExecutingAssembly();

if (assembly.GlobalAssemblyCache)
{
    Console.WriteLine("I'm in the GAC!");
}

EDIT: found a way...

In order to see if it is NGEN'd, you have to read the assembly directly and see if the Precompile Header field has data as per this page. I'm a bit rusty on getting to that value, but that should do it. I don't see a way to figure it out via the reflection methods.