Fixed an issue causing ZipExtractor to fail with System.UnauthorizedA…

…ccessException if the files it is trying to replace are hidden. This fixes #601.

README.md

@@ -63,6 +63,8 @@ There are two things you need to provide in XML file as you can see above.
 <checksum algorithm="MD5">Update file Checksum</checksum>
 ````
 
+You can also use the XML creator tool created by one of the user to create the XML file. You can download it from [here](https://github.com/DwainSnickles/AutoUpdater.NET.XML-Creator-master/blob/master/AutoUpdaterXML.zip).
+
 ### Adding one line to make it work
 
 After you done creating and uploading XML file, It is very easy to add a auto update functionality to your application. First you need to add following line at the top of your form.

ZipExtractor/FormMain.cs

@@ -160,7 +160,15 @@ private void FormMain_Shown(object sender, EventArgs e)
  {
  Directory.CreateDirectory(parentDirectory);
  }
- entry.ExtractToFile(filePath, true);
+ using (Stream destination = File.Open(filePath, FileMode.OpenOrCreate, FileAccess.Write, FileShare.None))
+ {
+ using Stream stream = entry.Open();
+ stream.CopyTo(destination);
+ stream.Flush();
+ destination.SetLength(destination.Position);
+ }
+
+ File.SetLastWriteTime(filePath, entry.LastWriteTime.DateTime);
  }
  notCopied = false;
  }