Late binding Word. need Activedocument.selection

[OTWarrior]

We use late binding in Access to reference the other office apps, as different machines have different versions of office.

I am trying to create a function that will password protect an opened word document, but allow a bookmarked section to remain editable.

This is what I have so far:

Word version (macro):
Sub Macro1()
Selection.GoTo What:=wdGoToBookmark, name:="Section2"
Selection.Editors.Add wdEditorEveryone
ActiveDocument.Protect Password:="a", NoReset:=False, Type:= _
wdAllowOnlyReading, UseIRM:=False, EnforceStyleLock:=False
End Sub

Access version (part of a sub):
Dim sel As Object
Set sel = objOfficeApp.Selection

sel.GoTo What:=-1, name:="Section2"
sel.Editors.Add 3 ' wdEditorEveryone
objOfficeApp.ActiveDocument.Protect Password:="Password", NoReset:=False, _
Type:=3, UseIRM:=False, EnforceStyleLock:=False
objOfficeApp.ActiveDocument.Save
objOfficeApp.Visible = True

it always seems to fail on Set sel = objOfficeApp.Selection, specifically the selection part

How do I do selection on late binding?

[CreganTur]

Can you show how you're defining objOfficeApp?