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How to: Install and Register the Bing OCR Control with the Azure Data Marketplace


This article is obsolete. The Bing Optical Character Recognition (OCR) Control is only available from the Visual Studio Gallery. To develop with the OCR Control, you must first subscribe to the control on the Windows Azure Data Marketplace, and then register your application.

There is no cost to subscribe for the first 5,000 service calls per month.

Published date: March 4, 2014


The Bing OCR Control is deprecated as of March 12, 2014.

Installing the Bing OCR Control

You can install the OCR Control from the Visual Studio Gallery.

To install the control

  1. From the Tools menu in Visual Studio, select Extensions and Updates…

  2. From the left pane, select Online and the select Visual Studio Gallery.

  3. In the search box at the top of the left pane, type Microsoft Bing OCR and hit <Enter>.

  4. In the middle pane, select Microsoft Bing OCR and click the Download button, then complete the installation wizard.

Subscribing to the Bing OCR Control and Registering your Application

The Bing OCR Service uses the OAUTH protocol to manage authentication and track usage. The OCR Control must therefore supply the web service with ClientID and ClientSecret values to satisfy the protocol requirements.

Once you have subscribed to the OCR Control, you can register an application with the marketplace. This both provides the ClientID and ClientSecret values for your application, and allows you to publish your application for sale on the marketplace.

To subscribe to the Bing OCR Control

  1. Go to Bing OCR Control purchase page on Windows Azure Marketplace.

  2. On the Registration page, click the BUY or SIGN UP link that corresponds to the level of subscription you want.

    The free subscription is usually sufficient for development and testing purposes.

  3. Fill out the registration form and then click CONTINUE.

  4. Check the box to accept the terms of use for Windows Azure Marketplace, and then click REGISTER.

  5. On the Sign Up page, check the box to accept the publisher’s terms and privacy policy, and then click SIGN UP.

    You can check your usage or cancel your subscription at any time from the My Data page at

To register your application with the Azure Data Market

  1. Go to the Windows Azure Marketplace Developers page at and click the REGISTER button.

  2. Fill in the Client ID field with a unique string to identify your application.

  3. Fill in the Name field with the name of the application as you would like it to appear in the Marketplace.

  4. Fill in the Redirect URI with a common URI. This value is required, but will not be used.

  5. Record the values for Client ID and Client Secret. You will need these to implement the OCR control.

  6. Click CREATE.

    You will be returned to the Windows Azure Marketplace Developers page with your new application listed.

Additional resources