title: How does Chrome update without UAC
body: <p>I just try to understand the Google update service (aka Omaha) and can't find any information about how Omaha updates Chrome without the UAC Prompt?! Or without any Administrator privileges.</p>
  
  <p>I am looking for a way to lunch a update service that can Update a Application in the Program  folder (without UAC / Administrator privileges) just like Omaha does, but i can't find any documentation regarding that topic. Tried browsing the source code a bit thought but i couldn't find anything that helps.</p>
  
  <p>In fact only the Installation should require Administrator Rights, but the update should not.
  Any "easy" way to achieve this in C#?</p>