I'm sure the gurus can explain this in more detail, but basically ThisWorkbook
refers to the workbook the macro is stored in, and ActiveWorkbook refers to
the - yes - active workbook.

Enter the following macro in a code module:

'----
Public Sub WorkbookNames()
MsgBox "This = " & ThisWorkbook.Name & " Active = " & ActiveWorkbook.Name
End Sub
'----

HTH
Anders Silvén

"Rich" skrev i meddelandet
...
How can I control the workbook reference when I assign a
macro to a toolbar button?

I want the workbook reference to always be the current
workbook.

TIA,
Rich