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MCNostalgia v0.5 ReadMe
Forum: http://www.minecraftforum.net/viewtopic.php?f=25&t=113094


Description
===========
MCNostalgia is a tool that takes binary difference patches and applies them to the latest version of Minecraft, essentially reverting it to an older version, without ever distributing any .jar files illegally. Binary difference patches are made by taking the differences between two files, one is the source/old file, in this case the latest version of Minecraft, the other is the output/new file, in this case an older version of Minecraft. To patch the files, MCNostalgia requires Minecraft to be unmodified.


Install
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1) Extract the archive to any folder
2) Install python
3) Run MCNostalgia, it should enter Configurator mode
4) Choose which options you would like enabled, if you want it to work with different directories than the default ones, I highly suggest you disable alerts. It is recommended that you leave errors and logging enabled.
5) Choose quit.

Linux Users
You will need to get the bspatch tool in order for this to work, Macs come with it already, and a Windows version(named bsapply to avoid the UAC's catchall of the term patch) is included in the archive.


Uninstall
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1) Run MCNostalgia and choose UnPatcher if you have a patch installed.
2) Delete the folder containing MCNostalgia and the patches.


Usage
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Patching:
1) Choose a version in the Patches folder and copy all the ptch files into he Patcher folder.
2) Run MCNostalgia
3) Choose Patcher
4) Play Minecraft!

UnPatching:
1) Run MCNostalgia
3) Choose UnPatcher
4) Play Minecraft!

Changing Settings:
1) Run MCNostalgia
2) Choose Configurator, this will run the Configurator again for you to configure the settings again

Emergency Tool:
The emergency tool will delete the backup, as well as the version file in .minecraft/bin, forcing Minecraft to update and getting rid of any potentially dangerous files that could be causing issues. Only use this if you somehow manage to break the patcher.


History
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0.5, 24/12/2010 - python implemented, several failsafes added, however, not following instruction can still cause issues to arise
0.2, 22/12/2010 - First public release, minor improvements to batch scripts
0.1, 21/12/2010 - Test release


Credits
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CyborgDragon: For making this
okushama, ZeuX, amh7912, lahwran: Testing
Notch: For making this game
303: For pushing CyborgDragon to port it to python


Licensing/Legal
===============
You can do whatever you want with this tool but don't complain to me if your PC blows up.