title: How to check which file type has PrintTo command available in Windows?
body: <p>In Windows Explorer, when you right click, there is a 'Print' function for some of the file type.  I know it's using the vert PrintTo to print the file.</p>
  
  <p>I want to know how can I identify does a specific file type has this PrintTo verb association?  Any available library in C#?</p>