Group/Outline Worksheets When Protected

I Need the outline/group feature to work on a protected workbook with over 200 sheets, meaning a macro to cover the entire workbook not just a single sheet. This macro should travel with the workbook as it will be on many different peoples PC's

Private Sub Workbook_Open()
Dim cSheet As Integer
Dim tSheet As Worksheet
On Error Resume Next
cSheet = 1
Set tSheet = Worksheets(cSheet)
While Err.Number = 0
Call wbProtect(tSheet)
cSheet = cSheet + 1
Set tSheet = Worksheets(cSheet)
Wend
Err.Number = 0
End Sub..........................