title: Handling Zip Files Without Third Party Lib in .NET 4.0?
body: <p>There is a similar question for 3.5 here:</p>
  
  <p><a href="https://stackoverflow.com/questions/593026/is-there-a-built-in-zip-library-in-net-3-5">Is there a built-in zip library in .NET 3.5?</a></p>
  
  <p>that speculated that 4.0 would have it, but I can't find any info about it.  If not, does anyone know why not?  Seems like it would be fairly high on the list of things to include support for.</p>