title: Powershell hashtable keys with special characters
body: <p>I'm having trouble trying to access a hashtable with a / in the key.  In my case the keys are mime types, and a simple example of the hashtable looks like:</p>
  
  <pre><code>PS H:\&gt; $h
  
  Name                           Value                                                                                                                         
  ----                           -----                                                                                                                         
  application/pdf                {application/pdf, application/pdf}
  </code></pre>
  
  <p>When I try to do access by the Key name, I am not getting any results:</p>
  
  <pre><code>   PS H:\&gt; $h."application/pdf"
  
     _______________________________________
     PS H:\&gt; $h["application/pdf"]
  
     _____________________________________________
     PS H:\&gt;
  </code></pre>
  
  <p>What is going on here, and how to I use this key?</p>