title: Decompressing password-protected ZIP files with .NET 4.5
body: <p>Microsoft introduces improvements for ZIP file handling in .NET 4.5 in the <a href="http://msdn.microsoft.com/en-us/library/3z72378a.aspx">System.IO.Compression</a> namespace. Namely the classes <a href="http://msdn.microsoft.com/en-us/library/system.io.compression.ziparchive.aspx">ZipArchive</a> and <a href="http://msdn.microsoft.com/en-us/library/system.io.compression.zipfile.aspx">ZipFile</a>. 
  However, I have not yet seen a way to use native .NET ZIP file handling for password protected files. Is there a way to achieve this? (I am aware that there are pretty good 3rd party zip file libraries, that is not the question.)</p>