title: Multiple Exes running in WPF Application
body: <p>My Solution has 3 wpf applications, each an exe. The main exe (called as Parent) has a menu from where I want to call (open) the other two exes. I am able to do that by process.start (myexe) and assign it to the window handle of the parent application.<br><br> However, I want the new exe to be opened inside a particular content control (or a tabitem, or a prism region) of my wpf mainwindow. I also tried using Prism but I am unable to assign the exe's mainview to a region. 
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  I am not able to get the view (usercontrol) from child process's handle and assign it to a contentcontrol of the main view of the parent application.
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  The final result in any case should have multiple exes opened in the task manager (which I have achieved) but they are floating inside the Parent App, My main intent is to show them inside some designated control in the main app.</p>
  
  <p><br><br>Can someone guide how this can be achieved? </p>