I'm experimenting with Ribbons in 2010, and apparrently I must create
the macro with '(Control As IRibbonControl)' to be able to call the
macro from a ribbon-button.

But this gives an a compile error in XL2003.

My quick test -macro is:

Sub Show_A1(Control As IRibbonControl)

If Range("A1").Value = "" Then
MsgBox "Cell A1 is empty!"
Else
MsgBox "Cell A1 = " & Range("A1").Value
End If

End Sub

How to make macros work in both XL2003 and XL2010 without compiler-error
in either???


CE