title: SQL Server Linked Server : OLE DB provider 'MSDAORA' reported an error
body: <p>I have an issues with linked server to Oracle...</p>
  
  <p>at first the server running SQL Servre 2000 and Oracle8i, and the linked server works well...</p>
  
  <p>But after IT Department installs an Oracle 11g Client on the server...</p>
  
  <p>When I execute my open query in SQL Server, I get an error message</p>
  
  <blockquote>
    <p>[OLE/DB provider returned message: Oracle error occurred, but error message could not be retrieved from Oracle.]<br>
    OLE DB error trace [OLE/DB Provider 'MSDAORA' IDBInitialize::Initialize returned 0x80004005:   ].  </p>
    
    <p>Msg 7399, Level 16, State 1, Line 1<br>
    OLE DB provider 'MSDAORA' reported an error.  </p>
  </blockquote>
  
  <p>Hope you guys can help me out, thanks.</p>