title: search on outlook item by UserProperties
body: <p>I have to save my database pkid to outlook. I used <code>UserProperties["TaskId"]</code>. I have tried to find the item by this id, and the below code is not working </p>
  
  <pre><code>tasksFolder.Items.Find(string.Format("[TaskId] = '{0}'", id))
  </code></pre>
  
  <p>Is there anyway to find my items instead of looping on all my lists!
  Is there any better way to save Database id on outlook, EntryID is readonly.</p>