Before using Zip 2000 for the first time, you should use the !SysMerge Obey file to merge the System folder here with your master System folder. On RISC OS 5 or later you should use the System Merge facility of Configure instead. This is the first release of Zip 2000 for many years - it's mainly a load of work that's been sitting on my hard drive since early 2002. I've carried out a small amount of new work to fix bugs exposed by more recent story+test files, and to adjust the prototype Z-Machine Standard 1.1 implementation from 2002 to match the final revision prepared by David Kinder in 2006. Support components also updated: * Sound modules QTM and DataVox 32-bit compatible. * Built with latest libpng and zlib. * Latest Castle System modules.