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sinewalker/appdata.md

Last active January 6, 2018 21:46
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Temporarily change %APPDATA% for portable settings (Windows: e.g. Minecraft)
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appdata.md

Need to take %APPDATA% directory data to another PC? For example Minecraft game saves to take in to a school for projects, or to a friend's house. The tricky part is: %APPDATA% has a different location depending on the version of Windows. Yay Microsoft, thanks once again.

The good news is that many Windows programs do use the environment variable to locate this folder, so you can just override it and launch your game or whatever from a .cmd / .bat file.

In the case of Minecraft on a USB:

  1. Make a folder structure on the USB drive for it (assume E: is the USB):
    • E:\Minecraft
    • E:\Minecraft\bin
    • E:\Minecraft\data
  2. Copy your Minecraft binaries into the \bin folder and your %APPDATA%\.minecraft into \data
  3. Make a batch file to launch the game (below) and save it to E:\Minecraft\minecraft.bat
  4. Lanch the batch file to play the game

This will run the game from the USB, which could be slow. Also it'll still require Java to be installed.

Raw
minecraft.cmd
set APPDATA=%CD%\data
bin\minecraft.exe
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