title: How to step into C/C++ DLL from C# application while debugging
body: <p>I have two project in my solution: C/C++ Win32 DLL and some C# application.</p>
  
  <p>What I have to do to be able to step into DLL while debugging?</p>
  
  <p>I switched on all debugging options in C++ project's settings and copied to C# application root next files: MyLib.dll, MyLib.pdb, vc90.pdb, vc90.idb, but it doesn't helped.</p>
  
  <p>What additional actions have I to carry out?</p>