title: MemoryCache case insensitive key lookup
body: <p>I'm trying to find a way to make the .net 4.0 MemoryCache.Default instance use a case insensitive comparer.</p>
  
  <p>Is that possible?</p>
  
  <pre><code>var bob = new object();
  
  MemoryCache.Default["Bob"] = bob;
  
  bob == MemoryCache.Default["bob"]; --&gt; true
  </code></pre>