title: How to install Github for Windows offline?
body: <p>As the question says how to install Github for Windows without an internet connection? 
  If it is not possible then is there some alternative client with the following features:</p>
  
  <ul>
  <li>Support for proxy</li>
  <li>Offline installer</li>
  </ul>
  
  <p>I found smartgit which has an offline installer but it seems it doesn't have proxy support.</p>
  
  <p>If there is no such client then what can be done to extend the functionality of github for windows or some other client? I mean is there a way to use some API to extend it? Any links for that would be helpful.</p>