title: How do I enable an Excel Automation Add-in through the registry?
body: <p>I have an Excel Automation Add-in that is registered with COM by my installer.  By registering with COM, my add-in appears in the (for Excel 2007) Excel Options > Add-Ins > Manage Excel Add-Ins Go... > Automation list.  The users must still navigate to the dialog above and select my add-in to enable it.</p>
  
  <p>Is it possible (via a registry key perhaps) to enable my automaton add-in programmatically in my installer class (or in VBA) after the types are registered with COM?</p>
  
  <p>Thanks in advance - Frank</p>