title: ClickOnce updates all files. Why?
body: <p>I've got small wpf application deployed using ClickOnce technology. The problem is that when I build new version clients download all files, though many of these files have not been changed. I use following configuration to make deployment manifest</p>
  
  <pre><code>&lt;GenerateDeploymentManifest AssemblyName="MyApp.exe.application"
    AssemblyVersion="1.0.0.0"
    DeploymentUrl="\\...\MyApp.exe.application"
    Product="Egs.Client"
    TargetCulture="ru-RU"
    Description="My application"
    Publisher="MyCompany"
    Install="true"
    UpdateInterval="1"
    UpdateUnit="Weeks"
    UpdateEnabled="true"
    UpdateMode="Background"
    OutputManifest="$(ApplicationFile)"
    MapFileExtensions="true"
    EntryPoint="@(DeploymentManifestEntryPoint)" /&gt;
  </code></pre>
  
  <p>Even If I just change "1.0.0.0" to "1.0.0.1" clients will download whole application again.
  Am I missing something or it's standart behaviour ?</p>