title: Open all files when user right clicks and selects "Open With"
body: <p>I have an application written in WPF/C# that can take multiple files as command line arguments.  When I run it from the command line with multiple files it opens all of them.  When I select multiple files in an explorer window and drag them to the applications icon it opens all of them.  But if I select multiple files in explorer and right click, select Open With, and then select my application it only opens the last one.  Is there a way to tell Windows that my application can handle more than one file?  I've noticed that some programs seem to work that way while others do not.</p>