I first blogged on this back in January but based on all my meetings in Feb, very few ISVs seem to know about it.
Lets expand a little. The most often repeated reason I’ve been given for wanting access to the Microsoft source code is for debugging and optimisation purposes:
We have therefore made .NET Framework source available and we have simplified the setup a developer needs to do in order to debug into the framework with Visual Studio 2008 Standard and above.
This is good, I mean really good.