# Install on Windows

Install Kwker on Windows x64 and Windows ARM64 - the Python wheel, the C library (DLL) and the Rust crate, and what is experimental there.

Web page: https://kwker.io/docs/?p=install-windows - every Kwker documentation page for AI assistants: https://kwker.io/llms.txt

Kwker runs on 64-bit Windows: x64 with prebuilt packages, ARM64 from source. In 0.1.0 Windows is experimental: the
packages build and pass their tests here, and speed is measured but not promised.

## Python (x64)

```sh
pip install kwker
python -m kwker doctor          # prints the engine in use
```

The wheel holds the core library and the `kwker` command.

## C and C++ (x64)

Use the `kwker-c-0.1.0-windows-x86_64.zip` archive: `include/kwker.h` and `kwker.hpp`, `bin/kwker_c.dll`, its import
library and the CMake package. Keep `kwker_c.dll` next to your program or on `PATH`.

## Rust

```toml
[dependencies]
kwker = "0.1"
```

The build needs clang++ (MSVC's cl.exe is not supported). On Windows ARM64 this is the way to use Kwker in 0.1.0: no
prebuilt package yet.

## Not in the Windows packages yet

The PyTorch extensions, the KwkCNN / KwkEncoder / KwkDecoder runners, the Kwker Runtime with its ONNX Runtime provider,
the DuckDB extension and the Polars plugin. Everything else in the package works without them.

## Related

- [Installation](https://kwker.io/docs/md/install.md): every platform and package.
- [Runtime controls](https://kwker.io/docs/md/cpu-runtime.md): see and choose the engine.