Question

I have just noticed that when i call the following code from a console app

for (int i = 0; i < 10; i++)
{
  Trace.WriteLine("Logging");
  Debug.WriteLine("Logging Debug");
}

if I am targeting .net 4.0 no messages appear in the debugview app although I am capturing all outputs.

If I change to target 3.5 it appears fine.

What’s changed and how can I fix it?

Answer 1

This is actually by design.
From Microsoft Connect :

The CLR has a new debugging
architecture where the CLR is native
debugging the application even when
managed only attached, and therefore
MS-SysInternals DebugView will not
work.