I’ve mentioned it before, but SysInternal‘s DebugView is a great utility. It allows you to get the Debug.WriteLine() strings from your application even when you’re not attached with a debugger, as long as it was compiled in Debug mode. Very convenient.
Unfortunately, it’s a bit hard to use when I’m also actually doing work with Visual Studio. It seems that some bits of VS are also logging calls with the OutputDebugString API call. I can live with the occasional message like this:
 DllCanUnloadNow called for VSA7.dll
 DllCanUnloadNow returned S_FALSE
but getting these:
 Left. Enter HWND 90ea6
whenever I do anything in Visual Studio is annoying, and quickly hides any pertinent debug messages I want to see.
Running Microsoft Visual Studio 2005 Team Edition for Software Developers
Version 8.0.50727.51 (QFE.050727-5100)
Microsoft .NET Framework