Excel: How to: Pass Command Line Parameter [DKenny is KING!]

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Excel 2003 VBA

I vaguely recall having done this somewhere in the way distant past ... can I pass a general purpose variable (department name string in this case) as a Command Line Parameter to Excel? Right now I have 6 different workbooks for 6 departments with macros, and I want to consolidate them all into one workbook with 6 shortcuts, where the shortcut provides the department via a Command Line Parameter. Except for the department name and folder path, the Macro is identical for each department. I know I can specify a startup file in the Command Line, but can I use a general purpose parameter? Isn't there some way to fetch the parameter in the Workbook Open event?

Is there perhaps an API call that can fetch the command line so that I can extract my parameter?