Sometimes one of your contacts may have invisible status on Yahoo Messenger and you need him urgently.
But you must ask yourself if the absent and invisible status are the same, it is difficult to know?
BuddyCheck is what you need to clear any of your doubt. BuddyCheck is a software to show the real status of a contact on Yahoo Messenger. More precisely, it was designed to identify if a contact is online even if he is in invisible mode. Once the scan is complete, you BuddyCheck sends a special message or display an icon on the taskbar on the state of a contact.