# Using OR-Tools NuGet for .Net

## Introduction

This guide gets you started with OR-Tools in .Net with a simple working
example.

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

<br />

## 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 .Net is a wrapper for the
C++ native library.

### .NET Core 3.1 SDK

You must install the package .NET Core 3.1 SDK version 3.1.100 or higher from
the following location:
[sdk-3.1.425-windows-x64-installer](https://dotnet.microsoft.com/en-us/download/dotnet/thank-you/sdk-3.1.425-windows-x64-installer)

### .Net 6.0 SDK

You must install the package .NET 6.0 SDK from
the following location:
[sdk-6.0.403-windows-x64-installer](https://dotnet.microsoft.com/en-us/download/dotnet/thank-you/sdk-6.0.403-windows-x64-installer)

## Get the .Net example code

The example code is located in the
[dotnet_or-tools](https://github.com/or-tools/dotnet_or-tools) repository.

1. [Download the repository as a zip file](https://github.com/or-tools/dotnet_or-tools/archive/v9.12.zip)
   and extract it, or clone the repository:

       git clone -b v9.12 --depth 1 https://github.com/or-tools/dotnet_or-tools

2. Change to the examples directory:

       cd dotnet_or-tools

## Build the example

From the `dotnet_or-tools` directory:

Build the project using:


    dotnet build -c Release

<br />

## Run the example

From the `dotnet_or-tools` directory:

Run the binary using:


    dotnet run -c Release

<br />

Congratulations! You've just run an application with OR-Tools, you are ready to
[get started with OR-Tools](https://developers.google.com/optimization/introduction/dotnet).