Petreny Zsolt has the latest release of DILE ready! He has a blog post summing up the new stuff.

The coolest thing is: You can debug .Net applications in IL!!! 

Big deal right?  Have you ever tried to step into someone else's library (that you don't have the source for) while debugging in VS.Net?  The one trick I use to use doing that was to show the “disassembly” - which is x86 Assembler and what the combobox up in the upper left corner to see what method the debugger was in at that moment ... then bring up Reflector on my other monitor and try to follow the flow.  For small call graphs this works fine, but takes too much time and is a pain due to the debugger not showing you where you are exactly .... well now enter DILE ...

With this version of DILE you can step into the IL of another component in the debugger ... that means you can see the IL not x86 Assember, which makes it much faster to really understand what is going on.  Now with DILE paired with Reflector I can tell exactly where I am and see it in the language of my choice ... it does still take running the two different applications, but is it much much better than VS.net showing me x86 Assembler...

If you are like me and love this sort of thing you should download DILE and check it out.  Warning though, it is happier on .Net 2.0 applications than with 1.1 at the moment.

DILE is really starting to become a great tool for a developer's toolbox, plus it is open source so if you want to look at the actual code you can!