This document contains details of patches you can apply to Infocom story files to remove copy-protection. They are intended to make life easier for those who find the protection inconvenient. I hope you find them useful.
Comments are welcome.
If you would like a patch to be developed for another Infocom game, let me know which one, and give some details of the protection. Use a binary file editor to apply these patches. Offsets are given in hex, with the first byte of a file being at offset 0. Although this is harmless, the interpreter may report a bad story file when in fact the file is intact. These patches were made possible by Mark Howell's TxD, Paul David Doherty's DebugTool, and Graham Nelson's Z-Code specification document.