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Automating World Backups with Prism Launcher Pre-Launch & Post-Exit Scripts

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Topicprism launcher pre launch post exit commandprism launcher pre launch post exit command windowsprism launcher topics

Practical Windows guide for "prism launcher pre launch post exit command": instance setup, Java configuration, and mod management in Prism Launcher.

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Windows 10 & Windows 11 (x64)
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How "prism launcher pre launch post exit command" works in Prism Launcher

Minecraft players searching for **prism launcher pre launch post exit command** want a fast, reliable workflow on Windows without corrupting existing worlds or fighting Java errors. Power users can customize Prism Launcher with pre-launch backup scripts, shared folder symlinks, Generational ZGC flags, and custom CatPack mascots.

Whether you are managing isolated Instances, installing Modrinth & CurseForge Modpacks, switching Loaders, or tuning Java 17 & 21, Prism Launcher keeps every control in one tabbed window.

Prism Launcher screenshot showing the modpack installation user-interface
Modpacks install as their own instance, so they stay clean and easy to update.

Step-by-step instructions on Windows

  1. Download the Windows installer or portable package from /download and open Prism Launcher.
  2. Sign in under **Accounts** (or select your offline profile for local single-player worlds).
  3. Open the **Topics** controls inside your instance (Right-click → **Edit**) or global **Settings** to apply your configuration.
  4. Click **Launch** and monitor the **Minecraft Log** tab if testing new mods or shaders.

Frequently asked questions

What is the quickest way to configure "prism launcher pre launch post exit command" in Prism Launcher?

Install the latest Windows build from /download, right-click your target instance, and click **Edit** to access Version, Mods, and Java settings.

Will changing this setting affect my other Minecraft instances?

No. Every instance in Prism Launcher is isolated in its own folder unless you explicitly edit global launcher settings.

Get Prism Launcher

Windows, macOS & Linux

Free and open source. Sign in with the Microsoft account that owns Minecraft, then create your first instance.

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Prism Launcher on Windows showing several modpacks and instances