title: Visual Studio: Dataset and DataTable Visualizer not working in watch window
body: <p>I have just installed visual studio 2005 service pack 1 on a Windows 7 64 bit machine.  Everything appears to work fine and I am able to run my project without any errors.  However, when I am in debug mode I have noticed a problem with the "Watch" window for DataTables and DataSets.</p>
  
  <p>I have a DataTable named dt and I enter it in the watch window. No magnifying glass appears to open the visualizer and I get the following error in the value column:</p>
  
  <pre><code>0x000000001d438c90 { KEY_XMLSCHEMA="XmlSchema" KEY_XMLDIFFGRAM="XmlDiffGram" KEY_NAME="TableName" ...}
  </code></pre>
  
  <p>Has anyone else had this problem? I have tried everything in <a href="https://stackoverflow.com/questions/239206/datatable-visualizer-disappeared-from-my-visual-studio/1978806#1978806">this post</a> and searched all around google but nothing worked.</p>