---
title: "Internet Server Error: Access Denied | Microsoft Docs"
ms.prod: sql
ms.prod_service: connectivity
ms.technology: connectivity
ms.custom: ""
ms.date: 11/09/2018
ms.reviewer: ""
ms.topic: conceptual
helpviewer_keywords: 
  - "access denied error in RDS [ADO]"
ms.assetid: e5b43cfa-da8d-430d-a2ab-5443dda47a16
author: MightyPen
ms.author: genemi
---
# Internet Server Error: Access Denied
If you get this error, it usually means that Microsoft Internet Information Services (IIS) returned the following status:  
  
 HTTP_STATUS_DENIED 401  
  
 Make sure the directories accessed by IIS have proper permissions. RDS can communicate with an IIS Web server running in any one of the three Password Authentication modes: Anonymous, Basic, or NT Challenge/Response (called Integrated Windows authentication in Windows 2000). Also, the Web server must have permissions to the data source computer if it is a Windows NT/Windows 2000 computer.  
  
> [!IMPORTANT]
>  Beginning with Windows 8 and Windows Server 2012, RDS server components are no longer included in the Windows operating system (see Windows 8 and [Windows Server 2012 Compatibility Cookbook](https://www.microsoft.com/download/details.aspx?id=27416) for more detail). RDS client components will be removed in a future version of Windows. Avoid using this feature in new development work, and plan to modify applications that currently use this feature. Applications that use RDS should migrate to [WCF Data Service](https://go.microsoft.com/fwlink/?LinkId=199565).  
  
## See Also  
 [RDS Fundamentals](../../../ado/guide/remote-data-service/rds-fundamentals.md)