title: Programmaticaly prevent Vista desktop search (WDS) from indexing pst files placed on mapped network drives
body: <p>After several days and multiple attempts I didn't find any 100% solution for this trouble.
  My search and investigation scopes:</p>
  
  <ol>
  <li>Direct access to registry:
  HKLM\SOFTWARE\Microsoft\Windows Search\CrawlScopeManager\Windows\SystemIndex\WorkingSetRules
  HKCU\Software\Microsoft\Windows Search\Gather\Windows\SystemIndex\Protocols\Mapi
  HKLM\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\Sites\
  and other keys...</li>
  <li>Windows Search 3.X interfaces like ISearchManager using Microsoft.Search.Interop</li>
  <li>Microsoft.Office.Interop.Outlook classes: NameSpace, Store</li>
  <li>AD policies (useless, no effect :(</li>
  </ol>
  
  <p>Preferred technologies: VB.NET, C#.
  This solution must be deployed within a large organization (about 5000 wokstations). </p>
  
  <p>Any ideas?
  Thanks in advance.</p>