Hi, RobiNew! Not elegant but works. I couldn't make VBA see Array() or Split() functions with diacritics or their Uncodes however I tried. So I came up with this "primitive" code.
Code:
Sub RemoveDiacritics()
Dim rng As range
Set rng = Selection.range
With rng.Find
.ClearFormatting
.Replacement.ClearFormatting
.text = ChrW(192)
.Replacement.text = "A"
.Forward = True
.Wrap = wdFindStop
.Format = False
.MatchAllWordForms = False
.MatchSoundsLike = False
.MatchWildcards = True
.Execute Replace:=wdReplaceAll
.text = ChrW(193)
.Replacement.text = "A"
.Execute Replace:=wdReplaceAll
.text = ChrW(194)
.Replacement.text = "A"
.Execute Replace:=wdReplaceAll
.text = ChrW(195)
.Replacement.text = "A"
.Execute Replace:=wdReplaceAll
.text = ChrW(196)
.Replacement.text = "A"
.Execute Replace:=wdReplaceAll
.text = ChrW(197)
.Replacement.text = "A"
.Execute Replace:=wdReplaceAll
.text = ChrW(198)
.Replacement.text = "A"
.Execute Replace:=wdReplaceAll
.text = ChrW(200)
.Replacement.text = "E"
.Execute Replace:=wdReplaceAll
.text = ChrW(201)
.Replacement.text = "E"
.Execute Replace:=wdReplaceAll
.text = ChrW(202)
.Replacement.text = "E"
.Execute Replace:=wdReplaceAll
.text = ChrW(203)
.Replacement.text = "E"
.Execute Replace:=wdReplaceAll
.text = ChrW(204)
.Replacement.text = "I"
.Execute Replace:=wdReplaceAll
.text = ChrW(205)
.Replacement.text = "I"
.Execute Replace:=wdReplaceAll
.text = ChrW(206)
.Replacement.text = "I"
.Execute Replace:=wdReplaceAll
.text = ChrW(207)
.Replacement.text = "I"
.Execute Replace:=wdReplaceAll
.text = ChrW(209)
.Replacement.text = "N"
.Execute Replace:=wdReplaceAll
.text = ChrW(210)
.Replacement.text = "O"
.Execute Replace:=wdReplaceAll
.text = ChrW(211)
.Replacement.text = "O"
.Execute Replace:=wdReplaceAll
.text = ChrW(212)
.Replacement.text = "O"
.Execute Replace:=wdReplaceAll
.text = ChrW(213)
.Replacement.text = "O"
.Execute Replace:=wdReplaceAll
.text = ChrW(214)
.Replacement.text = "O"
.Execute Replace:=wdReplaceAll
.text = ChrW(217)
.Replacement.text = "U"
.Execute Replace:=wdReplaceAll
.text = ChrW(218)
.Replacement.text = "U"
.Execute Replace:=wdReplaceAll
.text = ChrW(219)
.Replacement.text = "U"
.Execute Replace:=wdReplaceAll
.text = ChrW(220)
.Replacement.text = "U"
.Execute Replace:=wdReplaceAll
.text = ChrW(221)
.Replacement.text = "Y"
.Execute Replace:=wdReplaceAll
.text = ChrW(224)
.Replacement.text = "a"
.Execute Replace:=wdReplaceAll
.text = ChrW(225)
.Replacement.text = "a"
.Execute Replace:=wdReplaceAll
.text = ChrW(226)
.Replacement.text = "a"
.Execute Replace:=wdReplaceAll
.text = ChrW(227)
.Replacement.text = "a"
.Execute Replace:=wdReplaceAll
.text = ChrW(228)
.Replacement.text = "a"
.Execute Replace:=wdReplaceAll
.text = ChrW(229)
.Replacement.text = "a"
.Execute Replace:=wdReplaceAll
.text = ChrW(232)
.Replacement.text = "e"
.Execute Replace:=wdReplaceAll
.text = ChrW(233)
.Replacement.text = "e"
.Execute Replace:=wdReplaceAll
.text = ChrW(234)
.Replacement.text = "e"
.Execute Replace:=wdReplaceAll
.text = ChrW(235)
.Replacement.text = "e"
.Execute Replace:=wdReplaceAll
.text = ChrW(236)
.Replacement.text = "i"
.Execute Replace:=wdReplaceAll
.text = ChrW(2374)
.Replacement.text = "i"
.Execute Replace:=wdReplaceAll
.text = ChrW(238)
.Replacement.text = "i"
.Execute Replace:=wdReplaceAll
.text = ChrW(241)
.Replacement.text = "n"
.Execute Replace:=wdReplaceAll
.text = ChrW(242)
.Replacement.text = "o"
.Execute Replace:=wdReplaceAll
.text = ChrW(243)
.Replacement.text = "o"
.Execute Replace:=wdReplaceAll
.text = ChrW(244)
.Replacement.text = "o"
.Execute Replace:=wdReplaceAll
.text = ChrW(245)
.Replacement.text = "o"
.Execute Replace:=wdReplaceAll
.text = ChrW(246)
.Replacement.text = "o"
.Execute Replace:=wdReplaceAll
.text = ChrW(249)
.Replacement.text = "u"
.Execute Replace:=wdReplaceAll
.text = ChrW(250)
.Replacement.text = "u"
.Execute Replace:=wdReplaceAll
.text = ChrW(251)
.Replacement.text = "u"
.Execute Replace:=wdReplaceAll
.text = ChrW(252)
.Replacement.text = "u"
.Execute Replace:=wdReplaceAll
.text = ChrW(253)
.Replacement.text = "y"
.Execute Replace:=wdReplaceAll
.text = ChrW(255)
.Replacement.text = "y"
.Execute Replace:=wdReplaceAll
End With
End Sub