title: Silverlight 2 - Download file - IE Blocks file download
body: <p>I'm having a problem with IE only in my Silverlight application. Since Silverlight 2 doesn't include a mechanism for file downloads I was left to my own devices to come up with a solution. The way I did it was as follows:</p>
  
  <p>HtmlPage.Window.Navigate(new Uri(sb.ToString(), UriKind.Relative));</p>
  
  <p>My StringBuilder contains the relative url with query string to a *.ashx handler on the server that reads the query string, gets some data from the database, and returns an Excel file.</p>
  
  <p>When I do this I get a blocked file download bar in IE only. I understand that this is a new security "feature" in IE and that it is being blocked because it believes that the download wasn't triggered by the user interaction with the web page. The users can choose to allow the download and that setting seems to be remembered for the rest of the session. However next time they open the page it happens again. Even if the site is in the Trusted zone and even if the popup blocker is configured to allow popups for the site.</p>
  
  <p>Does anyone know how to make IE know that the user did in fact request this file?</p>