title: open program once with multiple files as arguments from explorer
body: <p>I have a program that works when, a file is opened with it using the right click menu in explorer. But if I select multiple files and then right click and open with my program then it opens multiple instances of my program, instead of just passing the multiple files as arguments to a single instance. The program is written in vb.net but is not a windows form, it is just a module, so I can to tick the Single instance option in the properties in Visual Studio.</p>
  
  <p>So how do I open multiple files from explorer context menu in a single instance.</p>