Use this to unaccent your strings: ; Unicode Normalization Forms Global Enum $UNF_NormC = 1, $UNF_NormD, $UNF_NormKC = 5, $UNF_NormKD Func _UNF_Change($sIn, $iForm) If $iForm = $UNF_NormC Or $iForm = $UNF_NormD Or $iForm = $UNF_NormKC Or $iForm = $UNF_NormKD Then Local $aRet = DllCall("Normaliz.dll", "int", "NormalizeString", "int", $iForm, "wstr", $sIn, "int", -1, "ptr", 0, "int", 0) Local $tOut = DllStructCreate("wchar[" & 2 * ($aRet