---
title: "Installing a dox42 Add-In"
slug: "installing-a-dox42-add-in"
tags: ["task", "AddIn V5.0.4.2"]
updated: 2026-11-03T07:06:42Z
published: 2026-11-03T07:06:42Z
canonical: "help.dox42.com/installing-a-dox42-add-in"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.dox42.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Installing a dox42 Add-In

You can install dox42 Add-Ins for Microsoft Word, Excel and PowerPoint.

## Prerequisites

- Depending on the security policies of your company, you might need adminstrator rights on your computer
- You have internet access for the automatic download of .NET framework 4.5.2 and further software components.
- Microsoft Word, Excel and PowerPoint are closed.

## Steps

1. Open our download website to find the most recent releases: [https://www.dox42.com/Modules/Download](https://www.dox42.com/Modules/Download)
2. Go to the dox42 Enterprise Add-Ins tile and select the **Download** button. A .zip file with all dox42 Add-Ins is downloaded.
3. Extract the downloaded file. A folder named `dox42EnterpriseAddIn` is created that contains a folder with the latest release.
4. Open the subfolder and then one of the subfolders of the dox42 Add-In you want to install, e.g. `dox42WordAddInV5.0.2.2`.
5. Run the **setup.exe** file. The window **Microsoft Office Customization Installer** opens.
6. Select the **Install** button.

> [!NOTE]
> Note
> 
> On some systems it is necessary to run the **setup.exe** as administrator (right click > **Run as Administrator**) to avoid Visual Studio Tools for Office errors.

The message **The Microsoft Office Customization was successfully installed** opens.

> [!NOTE]
> **Note**
> 
> If the installation is not successful, check out our [Troubleshooting dox42 Enterprise Add-In installation](/v1/docs/troubleshooting-dox42-add-in-installation)
7. Select **Close**.
8. Optional: Repeat these steps for each dox42 Add-In you need to install.

## Result

You have installed a dox42 Add-In.

## Next steps

- [Activate the dox42 Add-In](/v1/docs/activating-a-dox42-add-in)