---
title: "Reference the Adyen COM Object to a .NET project"
url: "https://docs.adyen.com/point-of-sale/classic-library-deprecation/classic-library-integrations/com-extension-for-windows-integration/get-started-with-the-com-extension-for-windows/reference-the-adyen-com-object-to-a-net-project"
source_url: "https://docs.adyen.com/point-of-sale/classic-library-deprecation/classic-library-integrations/com-extension-for-windows-integration/get-started-with-the-com-extension-for-windows/reference-the-adyen-com-object-to-a-net-project.md"
canonical: "https://docs.adyen.com/point-of-sale/classic-library-deprecation/classic-library-integrations/com-extension-for-windows-integration/get-started-with-the-com-extension-for-windows/reference-the-adyen-com-object-to-a-net-project"
last_modified: "2026-05-23T12:56:20+02:00"
language: "en"
---

# Reference the Adyen COM Object to a .NET project

[View source](/point-of-sale/classic-library-deprecation/classic-library-integrations/com-extension-for-windows-integration/get-started-with-the-com-extension-for-windows/reference-the-adyen-com-object-to-a-net-project.md)

To use the COM extension for Windows, you must first reference the Adyen COM object to your cash register application.

1. Copy the `COM_intel_WINDOWS` folder to a convenient location, for example your documents folder.
2. Run the  `install_adyen_COM_service.bat` file as administrator.
3. Start Visual studio with the POS project.
4. On the Visual studio project right click choose **Add Reference...**
5. In the Reference manager screen choose **COM** on the left side.
6. From the list, choose **Adyen POS C library COM interface, **and click **OK.**