This Microsoft Visual Basic example displays the number of COM add-ins currently connected.
Dim myOlApp As New Outlook.Application
Private Sub Command1_Click()
MsgBox "There are " & _
myOlApp.COMAddIns.Count & " COM add-ins."
End Sub
If you use VBScript, you do not declare an Application object variable. This example shows how to perform the same task using VBScript.
Sub Commandbutton1_Click()
MsgBox "There are " & _
Application.COMAddIns.Count & " COM add-ins."
End Sub