# Installing OR-Tools for Java from Binary on Windows

## Introduction

This guide explains how to install OR-Tools for Java on Windows.

Although these instructions might also work on other Windows variants, we
have only tested them on machines meeting the following requirements:


Windows 10 64-bit (x86_64) with:

- Microsoft Visual Studio Enterprise 2022
- Microsoft Visual Studio Community 2022 Preview 2 or above

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> [!NOTE]
> **Note:** OR-Tools only provides archives for the **x86_64** (also known as **amd64**) architecture.

## Prerequisites

The following sections describe the prerequisites for installing OR-Tools.

### Microsoft Visual C++ Redistributable

You must have the
[Microsoft Visual C++ Redistributable for Visual Studio 2022](https://visualstudio.microsoft.com/downloads/?q=Visual+C%2B%2B+Redistributable+for+Visual+Studio) (select the x64 version) installed
on your computer, since OR-Tools library for Java is a wrapper for the
C++ native library.

### Java JDK

You must also have a Java JDK 64 bit, version 8.0 or later installed.

You can find more details
[here](https://java.com/en/download/help/download_options.xml).

### Maven

You must also have a Maven 64 bit installed.

You can find more details [here](https://maven.apache.org/download.cgi).

## Installing OR-Tools

Take the following steps to install the OR-Tools library for Java:

Download and extract the binary distribution for your system:


- [Visual Studio 2022](https://github.com/google/or-tools/releases/download/v9.12/or-tools_x64_VisualStudio2022_java_v9.12.4544.zip)

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## Validate your installation

To test your Java installations, open a x64 Native Tools Command Prompt and navigate to
the directory where you unpacked the binary distribution. Then enter the
following command:


    tools\make test

<br />

This runs a selection of examples for OR-Tools. If all the examples run
successfully, you are ready to
[get started with OR-Tools](https://developers.google.com/optimization/introduction/java).