We have an app that tracks .DOC and .PDF files (and possibly other file extensions). It stores copies of them on a network share.

I want to give the ability to the user to allow them to click the file in a listview, for example, and have that file open in WORD or ADOBE or whatever program is associated with that file type.

How would I go about this?

And how about allowing them to click a "hyperlink" in some textbox, for instance, and have that open in IE?