Ensuring that the Repository Add-in Is Active

By default, the Repository Add-in for Visual Basic is not active. Each Visual Basic user can choose to add the Repository Add-in to the list of active add-in modules. If your add-in module calls the Repository Add-in for Visual Basic, you must ensure that it is active before making those calls.

There are two cases to consider:

• If your add-in module is loaded manually while Visual Basic is running, you can check immediately to see if the Repository Add-in is active.
  
  
• If your module is loaded as part of the Visual Basic initialization procedure, you must wait until Visual Basic fires the event indicating that all add-in modules have been loaded. Only then can you check whether the Repository Add-in is active.

Even if the Repository Add-in is active when your module starts, situations can arise that cause the Repository Add-in to shut down. If the Repository Add-in shuts down, it fires a Shutdown event during its shutdown processing. Your add-in module should register for this event.