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Initial release — killall v1.0.0
Windows 11 process termination tool with pattern matching, port/module/window/cmdline filters, CPU/RAM hog detection, LLM/game/hung subcommands, process tree kill, and restart. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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‎.gitignore‎

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# Compiled objects and binaries
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*.obj
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*.pdb
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*.ilk
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*.exp
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*.lib
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*.idb
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*.ipdb
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*.iobj
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# Build output logs
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build_out.txt
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build_err.txt
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# Visual Studio
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.vs/
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*.vcxproj
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*.vcxproj.filters
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*.vcxproj.user
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*.sln
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# Release archives (generated, not tracked)
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*.zip
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*.7z
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# OS
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Thumbs.db
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desktop.ini
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.DS_Store
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# The compiled .exe IS tracked so users can download without building
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# If you want to exclude it, uncomment:
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# killall.exe

‎README.md‎

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# killall — Windows Process Termination Tool
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A fast, feature-rich `killall` command for Windows 11, written in C++.
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Kill processes by name, pattern, port, DLL, window title, CPU/RAM usage, and more.
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---
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## Features
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| Capability | Description |
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|---|---|
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| Pattern matching | Exact, substring, glob (`*`/`?`), regex (`/pattern/`) |
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| Process tree | Kill a process and all its children with `--tree` |
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| Port targeting | Kill whatever is holding a port or port range |
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| DLL/module matching | Kill processes that have a specific DLL loaded |
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| Window title | Kill by visible window title |
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| CPU hog | Sample and kill processes exceeding a CPU threshold |
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| RAM hog | Kill processes over a memory limit |
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| Hung apps | Detect and kill frozen/unresponsive windows |
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| LLM/AI killer | Kills Ollama, LM Studio, Fooocus, KoboldCPP, etc. |
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| Game killer | Kills Steam, Epic, Xbox, Ubisoft Connect, and running games |
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| Restart | Kill and relaunch a process |
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| Self-protection | Never kills itself |
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| Colour output | ANSI colour with dry-run safety net |
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---
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## Quick Start
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Download `killall.exe` from [Releases](../../releases), drop it anywhere in your PATH, done.
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Or build from source — see [Building](#building).
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---
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## Usage
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```
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killall <pattern> [options]
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killall <subcommand> [options]
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```
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### Pattern Matching
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| Syntax | Type | Example |
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|---|---|---|
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| `notepad` | Substring (case-insensitive) | matches `notepad.exe` |
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| `note*` | Glob wildcard | matches `notepad.exe`, `notepadpp.exe` |
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| `/^steam/` | Regex | matches processes starting with `steam` |
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### Options
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```
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-t, --tree Kill process and all its children
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-f, --force Skip confirmation prompt
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-n, --dry-run Show what would be killed without killing
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--cmdline <pat> Match command-line substring or /regex/
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--module <dll> Match processes with a specific DLL loaded
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--port <N|A-B> Match processes using a TCP/UDP port or range
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--window <title> Match by visible window title (substring or /regex/)
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--parent <pid|name> Match children of a specific parent process
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--top <N> Limit ramhog/cpuhog to top N offenders
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--sample <N> CPU sampling duration in seconds (default: 2)
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-h, --help Show help
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```
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### Subcommands
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```
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hung Kill hung/frozen applications
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networkapps Kill all processes with network connections
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ramhog <MB> Kill processes using more than N MB of RAM
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cpuhog <percent> Kill processes using more than N% CPU (per core)
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gpu [--threshold N] Kill processes using the GPU
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llm Kill local AI/LLM processes
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game Kill games, launchers, and gaming services
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restart <name> Kill a process then relaunch it
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```
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---
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## Examples
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```bat
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:: Kill all Notepad windows
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killall notepad
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:: Kill Chrome and every child process it spawned
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killall chrome --tree
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:: See what's on port 8080 before killing it
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killall --port 8080 --dry-run
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killall --port 8080 --force
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:: Kill anything holding a port range
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killall --port 3000-3010 --force
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:: Kill by command-line content (useful for Python scripts)
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killall --cmdline fooocus --force
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killall --cmdline /server\.py$/ --force
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:: Kill processes with a specific DLL loaded
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killall --module msedge.dll --dry-run
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:: Kill by window title
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killall --window "Untitled" --force
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:: Kill all children of a process
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killall --parent explorer --dry-run
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:: Kill the top 3 RAM hogs over 500 MB
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killall ramhog 500 --top 3 --dry-run
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:: Kill CPU hogs over 80% (per core), sampling for 3 seconds
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killall cpuhog 80 --sample 3 --top 5
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:: Kill all local LLMs (Ollama, LM Studio, KoboldCPP, Fooocus, etc.)
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killall llm --force
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:: Kill all games and launchers (Steam, Epic, Xbox, Ubisoft, etc.)
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killall game --force
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:: Kill and restart a process
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killall restart explorer
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:: Kill hung/frozen applications
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killall hung --force
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```
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---
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## LLM / AI Detection
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`killall llm` detects AI processes by:
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- **Process name:** `ollama`, `lm studio`, `koboldcpp`, `jan`, `gpt4all`, `oobabooga`, `localai`, `vllm`, `whisper`, and more
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- **Command line:** `.gguf`, `.ggml`, `.safetensors`, `.ckpt` model files
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- **Command line:** `fooocus`, `comfyui`, `webui.py`, `stable-diffusion`, `invokeai`, `kohya`, and others
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## Game Detection
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`killall game` detects games by:
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- **Process name:** `steam`, `epicgameslauncher`, `xboxpcapp`, `upc`, `galaxyclient`, `blizzard`, `eadesktop`, `riotclientservices`, `minecraft`, and more
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- **Loaded DLLs:** `steam_api64.dll`, `unityplayer.dll`, `easyanticheat.dll`, `nvngx_dlss.dll`, `bink2w64.dll`, and others
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---
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## Building
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### Requirements
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- Windows 10/11
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- [Visual Studio 2022](https://visualstudio.microsoft.com/downloads/) with **Desktop development with C++** workload
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(or just the free **Build Tools for Visual Studio 2022**)
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### Build
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```bat
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git clone https://github.com/YOUR_USERNAME/killall-windows
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cd killall-windows
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build.bat
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```
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### Install
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```bat
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:: Run as Administrator for system-wide install (System32)
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:: Or run as normal user for per-user install (~\AppData\Local\Programs\killall)
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install.bat
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```
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---
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## How It Works
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| Feature | Windows API Used |
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|---|---|
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| Process enumeration | `CreateToolhelp32Snapshot` |
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| Process termination | `TerminateProcess` |
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| Process tree | `PROCESSENTRY32.th32ParentProcessID` traversal |
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| Command line | WMI `Win32_Process.CommandLine` |
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| Loaded modules | `CreateToolhelp32Snapshot (TH32CS_SNAPMODULE)` |
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| Network ports | `GetExtendedTcpTable` / `GetExtendedUdpTable` (IPv4 + IPv6 + UDP) |
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| Window title | `EnumWindows` + `GetWindowText` |
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| Hung detection | `SendMessageTimeout(WM_NULL, 2000ms)` |
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| Memory usage | `GetProcessMemoryInfo` |
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| CPU usage | Two-snapshot `GetProcessTimes` delta |
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| GPU detection | Checking for D3D/DXGI/Vulkan/CUDA DLL presence |
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| Process restart | `QueryFullProcessImageNameW` + `ShellExecuteA` |
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---
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## Notes
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- Processes running as **SYSTEM** (e.g. `gamingservices.exe`, `steamservice.exe`) require running killall as **Administrator** to terminate
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- `killall` never kills its own process (self-protection built in)
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- All pattern matching is case-insensitive
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- `cpuhog` reports per-core CPU percentage (same as Task Manager per-process view)
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---
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## License
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MIT

‎build.bat‎

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@echo off
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setlocal
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:: ── Locate MSVC ──────────────────────────────────────────────────────────────
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set VCVARS=
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for %%E in (Community BuildTools Enterprise Professional) do (
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if exist "C:\Program Files\Microsoft Visual Studio\2022\%%E\VC\Auxiliary\Build\vcvars64.bat" (
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set "VCVARS=C:\Program Files\Microsoft Visual Studio\2022\%%E\VC\Auxiliary\Build\vcvars64.bat"
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goto :found
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)
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)
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echo ERROR: Visual Studio 2022 not found. Install MSVC or Build Tools from:
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echo https://visualstudio.microsoft.com/downloads/
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exit /b 1
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:found
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call "%VCVARS%" >nul 2>&1
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set SRC=%~dp0killall.cpp
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set OUT=%~dp0killall.exe
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echo Building killall.exe ...
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cl.exe /nologo /O2 /W3 /EHsc /std:c++17 /Fe:"%OUT%" "%SRC%" ^
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/link psapi.lib iphlpapi.lib wbemuuid.lib ^
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ole32.lib oleaut32.lib advapi32.lib shell32.lib
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if %ERRORLEVEL% == 0 (
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echo.
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echo Build succeeded: %OUT%
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echo Run install.bat to add killall to PATH.
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) else (
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echo.
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echo Build FAILED - check errors above.
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exit /b 1
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)
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endlocal

‎install.bat‎

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@echo off
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setlocal
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set SRC=%~dp0killall.exe
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if not exist "%SRC%" (
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echo ERROR: killall.exe not found. Run build.bat first.
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exit /b 1
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)
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:: ── Try System32 (requires admin) ────────────────────────────────────────────
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copy /Y "%SRC%" "%SystemRoot%\System32\killall.exe" >nul 2>&1
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if %ERRORLEVEL% == 0 (
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echo Installed to %SystemRoot%\System32\killall.exe
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echo killall is now available system-wide.
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goto :done
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)
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:: ── Fallback: user bin in AppData ─────────────────────────────────────────────
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set USERBIN=%LOCALAPPDATA%\Programs\killall
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if not exist "%USERBIN%" mkdir "%USERBIN%"
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copy /Y "%SRC%" "%USERBIN%\killall.exe" >nul 2>&1
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:: Add to user PATH if not already there
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powershell -NoProfile -Command "
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\$p = [Environment]::GetEnvironmentVariable('PATH','User')
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if (\$p -notlike '*%USERBIN%*') {
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[Environment]::SetEnvironmentVariable('PATH', \$p + ';%USERBIN%', 'User')
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Write-Host 'Added to user PATH: %USERBIN%'
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} else {
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Write-Host 'Already in PATH'
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}
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"
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echo.
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echo Installed to %USERBIN%\killall.exe
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echo Open a new terminal and run: killall --help
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:done
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endlocal

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