title: How do I get SHDocVw.InternetExplorer to reuse the same window in Vista like it does in XP?
body: <p>I am working on a program that uses IE to display its help pages. I am using C# in Visual Studio 2008 compiling to .Net Framework 2.0  In Windows XP everything works as expected. In Vista every time I click on a help button I get a new window with a new IE browser. Has anyone else seen this or know how to get around this?   </p>
  
  <p>Here is the code I am using to display a page. strDefault is the location of the html help file I am trying to load. and all of the flags, postData, and Headers are empty. The target Frame is blank because this just loads the main page, I have code after this to load the specific frame. That part of this works fine. It is the Navigate method that is opening a new window in Vista. I have tried using some of the Flag options to no avail.</p>
  
  <pre><code>SHDocVw.InternetExplorer myIE = new SHDocVw.InternetExplorer();
  string strDefault = "Frame.htm"
  object Flags = new object();
  object TargetFrameName = new object();
  object PostData = new object();
  object Headers = new object();
  myIE.Navigate(strDefault, ref Flags, ref TargetFrameName, ref PostData, ref Headers);
  </code></pre>