title: What do I need to install to use OraOLEDB
body: <p>I have a Delphi 2007 app using ADO to connect to an Oracle database.  I have found for the app to support Blob field types I need to use the OraOLEDB provider to connect.  The connection string:</p>
  
  <pre><code>Provider=OraOLEDB.Oracle;Password=pwd;User ID=username;Data Source=127.0.0.1;Persist Security Info=False
  </code></pre>
  
  <p>I have found that using MSDAORA.1 as the provider, while it works with all other database communication, does not work with the Blob field.</p>
  
  <p>My question is, what do I need to install to have OraOLEDB installed/supported?  Is there a specific DLL that needs to reside?</p>
  
  <p>I have found the typical Oracle client installation is not supporting OraOLEDB.  It errors when trying to connect to the database because OraOLEDB is not installed.  </p>