title: Where are my System.Management.* classes?
body: <p>I just installed Visual Studio 2010 with .NET Framework 4.0 and C# and I can't find anything under the <code>System.Management</code> namespace except for <code>System.Management.Instrumentation</code>. All the online documentation at MSDN about WMI keeps telling me that I have to use classes such as <code>System.Management.ManagementObjectSearcher</code> or <code>System.Management.ManagementScope</code> but I don't see those classes.</p>
  
  <p>What happened to those classes and how can I access them?</p>