I frequently work with multiple identical sheets in a workbook. Based on Legare's response to my request for the capability to select print area across sheets, I tried to write my own freeze-panes-on-selected-sheets for XL97 without success. So I went to Legare's source for help.

Sub FreezePaneAcrossSelSheets()
'Toggle Freeze Panes across selected worksheets
'Bill Manville Apr 8, 2001
Dim oSheet As Worksheet
Dim oActive As Worksheet
Set oActive = ActiveSheet
Application.ScreenUpdating = False
For Each oSheet In ActiveWindow.SelectedSheets
oSheet.Activate
If ActiveWindow.FreezePanes Then
ActiveWindow.FreezePanes = False
Else
ActiveWindow.FreezePanes = True
End If
Next oSheet
oActive.Activate
Application.ScreenUpdating = True
End Sub

Thanks and credit to Bill and Legare.