title: ADODB objects are unmanaged resource?
body: <p>I create ADODB recordset, command etc in my winform app and was wondering if I should implement IDisposable on their wrapper classes to free them. Are they unmanaged resources?</p>
  
  <p>And to release any unmanaged resource, should call the Marshal.ReleaseObject(resourceInstance) or just setting it to null is enough?</p>
  
  <p>Thanks in advance
  Nishitha</p>