title: How to have a Word VSTO Custom Task Pane for more than one window?
body: <p>I'm creating a Word Add-in which displays a custom task pane.  This pane is then bound to the ribbon to be shown or hidden (simply by changing the visibile property).</p>
  
  <p>After loading a first document, I can see the task pane. However, when I open a new document (which opens a new window), the visible toggle button keeps checking (and thus hiding/showing) the custom task panel associated with the <em>first</em> window.</p>
  
  <p>How do i set the window property on the custom task pane to display it correctly.  (Perhaps always show it in all windows?)</p>