Réponse acceptée !
Une p'tite fonction faite par un membre du forum apparement :
Option Explicit
' Définition de la conversion
Const accent As String = "ÀÁÂÃÄÅàáâãäåÒÓÔÕÖØòóôõöøÈÉÊËèéêëÌÍÎÏìíîïÙÚÛÜùúûüÿÑñÇç"
Const noAccent As String = "AAAAAAaaaaaaOOOOOOooooooEEEEeeeeIIIIiiiiUUUUuuuuyNnCc"
' La fonction :
Private Function sansAccents(ByRef s As String) As String
Dim i As Integer
Dim lettre As String * 1
sansAccents = s
For i = 1 To Len(accent)
lettre = Mid$(accent, i, 1)
If InStr(sansAccents, lettre) > 0 Then
sansAccents = Replace(sansAccents, lettre, Mid$(noAccent, i, 1))
End If
Next i
End Function