title: Getting a list of all available namespaces in an AppDomain
body: <p>I need to 'scan' the active AppDomain for all loaded assemblies at run time and get a list of unique namespaces available in those assemblies, does .NET support that?</p>
  
  <p>The code must execute during the run time, so that the code is dynamic.</p>
  
  <p>I just started coding in C# , so I'm a bit unsure about where to get started, so any help will be appreciated. </p>