I'm trying to come up with some sort of strategy for populating a treeview
by reading in a list of paths from a file.  The paths file would contain
something like the following:

C:\A1\B1\C.htm
C:\A1\B1\D.htm
C:\A1\B2\A.htm
C:\A2\B3\A.htm

...

Can someone recommend a strategy for doing this?