Normally start Excel via the Window's-Run command box.

Approx 1/day, use a simple form-creation macro from Personal.xls via a
custom button which I would like to call from the command line like Word
does. (IE: windows-R excel /mMACROenter)

However Help/Google imply Excel's equivalents to Word's /mMACRONAME switch
are auto_open or workbook _open, neither of which apply in this instance
since the macro is part of Personal.xls and shouldn't run everytime Excel
opens. (BTW, using Office97)

Are the solutions really:
1. leaving well enough alone
2. saving the results to a file and cluttering the desktop with yet
another icon
3. recoding in Word
???