Published: July 16, 2012
Cancels a registration for notifications with a form viewer previously established by calling IMAPIForm::Advise.
Discard the pointer that you are holding to the form viewer's view advise sink by calling its IUnknown::Release method. Generally, Release is called during the Unadvise call. However, if another thread is in the process of calling one of the IMAPIViewAdviseSink methods for the view advise sink, delay the Release call until the IMAPIViewAdviseSink method returns.