title: What does the RegSetInfoKey operation do?
body: <p>The deatil tab associated with the operation says:</p>
  
  <pre><code>KeySetInformationClass: KeySetHandleTagsInformation, Length: 0 
  </code></pre>
  
  <p>I'm using Process Monitor (ProcMon) to monitor the Registry changes an installer makes and I cannot find an explanation for what this operation does.</p>