Sierra Unprotection Program

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Sierra Unprotection Program
Version 2.01
Author: Anders M Olsson
1990-03-30
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Sierra Unprotection Program
Latest Version:  2.01
Release Date:  1990-03-30[1]
Company: N/A
Development Status:  {{{DevStatus}}}
Publication Status:  Published
Developer(s): Anders M. Olsson
Interface: CLI
Language: Pascal
Open Source: Open
Source Availability:  Yes (included in Download)
License: None
Type: CPC Tool, CPC Tool, CPC Tool,

Copy Protection Tool, Copy Protection Tool, Copy Protection Tool, Copy Protection Tool, Copy Protection Tool, Cracking Tool, Cracking Tool, Cracking Tool Template:MiscAGITool

Relevant Engine: AGI
Platform: DOS
Localization: English
Website: www.abc.se/~m1019/




Description

Anders M Olsson's SUP (Sierra Unprotection Program) removes the CPC copy protection from most AGI games, as well as Thexder and 3-D Helicopter Simulator so they can be played on modern PCs. It patches the SIERRA.COM in AGI games so that the keydisk prompt no longer appears, CPC.COM is no longer loaded and the buffer which would be filled by CPC.COM with the decryption key at run-time will be already filled at program start. Or in short: It just "cracks" SIERRA.COM. It has an "express" option that allows you to unprotect all Sierra AGI games installed on your hard drive in a matter of seconds.

* See AGI DiskFree Decryptor for decrypting AGI games on modern Windows.


Usage

Copy this .exe into the folder of your protected game. Running the decryptor .exe alone will search for "sierra.com" (to find the key offset), and will create a decrypted AGI file called AGI.EXE (the file you will use to run your game). If your loader is named something other than "sierra.com", you just run the decryptor with that loader filename as the argument.


Download

 


References

  1. From the included README file


Also See