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injector/README.md

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+# Prestige injector (Rust)
+
+`PrestigeInjector.exe` loads `prestige_native.dll` into a running Minecraft **1.21.11 Fabric** JVM (64-bit, Fabric Loader 0.19.x,
+Fabric API installed). It uses the same overall method as the openvape bundle, written from scratch in Rust with no external crates.
+
+## How it works
+
+1. **Injector** lists visible `java.exe`/`javaw.exe` windows (refreshed every 750 ms), then runs `LoadLibraryW` in the chosen
+   process through `CreateRemoteThread` and confirms the module is mapped.
+2. **`prestige_native.dll`** (`DllMain` only spawns a worker thread):
+   - waits for `jvm.dll`, `JNI_GetCreatedJavaVMs`, attaches, acquires the JVMTI redefine/retransform capabilities;
+   - writes the embedded payload jar (the remapped `prestige-*.jar`) to `%TEMP%\PrestigeLoader`;
+   - `FabricLauncherBase.getLauncher().addToClassPath(jar)` so payload and game classes share the Knot class loader;
+   - registers `NativeBridge.classBytes` / `NativeBridge.redefine` and calls `Bootstrap.start()`.
+3. **`Bootstrap`** (Java) waits for the client window, then for every ClassTransform hook target gets the current class bytes
+   (JVMTI retransform capture), runs the hooks through `InPlaceTransformer` and redefines the class. The bundled ClassTransform
+   inlines hook handlers into the target methods, so normally nothing is added to the class and a plain redefine works. If a
+   transformer ever does add methods (a running JVM cannot), they are moved into generated `dev.zprestige.prestige.hooks.H*`
+   helper classes, call sites become `invokestatic`, and private member access goes through `Access` MethodHandles.
+   Finally the Prestige and ClickGUI entrypoints run on the client thread.
+
+Log: `prestige-native.log` beside the DLL, plus `[Prestige-Inject]` lines in the game log.
+
+## Build
+
+```powershell
+.\build-injector.ps1      # gradlew remapJar, cargo build --release, copies to dist\
+```
+
+## Use
+
+Start a Fabric 1.21.11 instance, then run `dist\PrestigeInjector.exe` (or `PrestigeInjector.exe <pid> [dll]`).