Some source code and many useful ideas have been taken from Kevin Bracey's Acorn RISC OS interpreter Zip 2000. Use has also been made of the source code for WinFrotz by Rich Lawrence.
The interpreter contains bitmap scaling code written by Eran Yariv. The code that handles Ogg Vorbis music is based on code submitted by David Moreno.
Windows Frotz was translated into German by Lothar May, into Italian by Tommaso Caldarola, into Spanish by Javier San José, into French by Jean-Luc Pontico, and into Russian by Nikita Tseykovets.
Windows Frotz uses jpeglib by the Independent JPEG Group; libpng by Guy Eric Schalnat, Andreas Dilger, Glenn Randers-Pehrson, and others; zlib by Jean-loup Gailly and Mark Adler; ModPlug by Olivier Lapicque; and libogg and libvorbis by the Xiph.org Foundation.
This interpreter would not have been possible without those who have worked to understand and document the