Business Notification

Hello All Navision… I have completely built Scheme for testing business Natification. What the next step? When I Open form ID 8000(Notification Setup) and click “Send notifications” there is error : “You have to instal Microsoft Business Notification to be able to send Notification” In logic,if I have completely built Scheme,my computer has been installed Business Notification,but why the error still show? please help me soon…