First of all, be aware that JIT compilation happens every time you run. The CLR doesn't store the compiled results anywhere permanent - it just JIT compiles into memory.
So if by "a set of assemblies" you mean a set of assemblies on disk somewhere, the information you seek doesn't actually exist - all JIT compiled code is just abandoned when the process exits. If you mean a set of assemblies loaded in a particular process or appdomain, then in principal you could find this out - as someone else has already pointed out, the profiling APIs let you do this. This is not wholly trivial. You can't attach a profiler to a process that is already running, you have to make sure that it gets loaded up front. You do this by setting a particular environment variable to contain the CLSID of your profiler - yes, .NET profilers must be implemented as classic unmanaged COM components. So if you need to have this information available to you from within the CLR, things are a little tricky - conceptually profilers run outside of the CLR. -- Ian Griffiths DevelopMentor ----- Original Message ----- From: "Stefan Finch" <[EMAIL PROTECTED]> Is it possible to take a set of assemblies and see which methods/classes have been Jit compiled, and which haven't yet (i.e. not executed)? You can read messages from the Advanced DOTNET archive, unsubscribe from Advanced DOTNET, or subscribe to other DevelopMentor lists at http://discuss.develop.com.