If user interfaces are not supported in the current environment this method will return immediately.
If no user interface was specified for the current extension an exception will be thrown.
The configuration user interface will be displayed asynchronously. If the user makes a configuration change then the appropriate configuration change notification methods will be called.
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2