title: Config file changes were lost in WPF when new user opens the application
body: <p>All,</p>
  
  <p>We have added custom configuration files to our WPF application. After installing the MSI (prepared with VS2010 setup template) we made changes to the configuration files. When a new user opens the application for the first time all the configuration file changes were lost.</p>
  
  <p>Do i need to change settings while preparing MSI to avoid this or is this a server (2008 R2) specific? </p>
  
  <p>Did any one come across this issue?</p>
  
  <p>I really appreciate your help</p>