Launch Macro Subroutine at Excel Start

[<>er@]

Two questions:

1-How to run automatically Visual Basic Subroutine Macro at start of excel?
Sub Auto_Open
ComboBox1.AddItem "Item1"
ComboBox1.AddItem "Item2"
ComboBox1.AddItem "Item...)
End Sub
(This is not executing at startup of the Workbook.)

2-If the launch is a Shell command for Access, how is the Access Window maximized and on top of all the other windows?

[pclement]

See the following:

Running a macro when Excel starts

[amotto]

Could also just save your macro workbook as an addin (.XLA file) and select from the AddIns menu in Excel so that it is opened whenever Excel is opened.