title: What's MonoPosixHelper.dll all about?
body: <p>In my effort to learn more about cross-platform developping in C# I tried checking out the Banshee project. In it's current form it is not compiling.<br>
  So I'm trying to fix it up as far as my knowledge is stretching.</p>
  
  <p>Firstly almost all of the projects have broken references. I thought this was the easiest part to fix. I thought wrong...
  A reference that is often broken is the MonoPosixHelper.dll. I installed the Mono framework and in it's bin folder fount the MonoPosixHelper.dll file. When I tried to reference it Visual Studio complains that it's not a valid assembly or not a COM object. The latter I understand because it's not a com..</p>
  
  <p>So, what does this library do exactly, why is it not a valid assembly and how can I solve this?</p>