title: How do I make an Office 2013/2016 application run in separate process on Microsoft Windows?
body: <p>I am developing a Excel plugin. It works all right for Excel versions before 2013. But a lot of features is broken when it runs against Excel 2013. I found the root cause is all windows are running in only one process in Excel 2013. Even if user explicitly launch a new window by double-clicking the shortcut on the desktop or by clicking the item in the start menu, no new process is created.
  This results in the status conflict between processes. Status bar and ribbon is shared. For instance, when I update the status bar information in one window, the other windows' are also updated. When I check/uncheck a ribbon button in one window, the other windows' buttons are also checked/unchecked.
  I think a possible solution is to change some configurations to make it work as before. But I found nothing relevant by searching on google.</p>
  
  <p>Does anyone know how to make it or is there any other solution?</p>