The PropSheet, PropPage and Window classes were written by Gary R. Van Sickle
and subsequently modified by a cast of thousands for Cygwin setup.

The hippo ico is credited as follows:

Original Artwork
  hippo_orig.svg
  http://openclipart.org/media/files/TheStructorr/1751 was declared public
domain by the artist, Michal Pecyna.

The version included here (hippo.svg) was modified by Charles Wilson, and used
to create hippo.ico via inkscape and gimp.  Both are released under the Creative
Commons Attribution ShareAlike 3.0 (CC-BY-SA 3.0) license.
