You can try it this way , this doesn't require you to use Messenger Plus! to do it.
1. Make sure you have set the following references :
Messenger API Type Library
2. Make sure you have added the following to your code.
Public WithEvents ________ As Messenger
Where the blank is , put your own variable (I use MSN)
3. Make sure in Form_Load() You have....
Set ______ As Messenger
In the blank you should put the same variable as above.
4. You can do
If ____ .MyStatus = MISTATUS_OFFLINE Then
*Something*
Else
*Something*
End If
So if they are offline (not connected) it will do something , if they are any other status (online/away/busy/ext) they have to be connected
If you ever need any help in Visual Basics feel free to Private Message me.