c'est tout simple il faut déclarer les fonctions suivnates :
Public Declare Function GetPrivateProfileString Lib "kernel32" Alias "GetPrivateProfileStringA" (ByVal lpApplicationName As String, ByVal lpKeyName As Any, ByVal lpDefault As String, ByVal lpReturnedString As String, ByVal nSize As Long, ByVal lpFileName As String) As Long
Public Declare Function WritePrivateProfileString Lib "kernel32" Alias "WritePrivateProfileStringA" (ByVal lpApplicationName As String, ByVal lpKeyName As Any, ByVal lpString As Any, ByVal lpFileName As String) As Long
Puis les utiliser par exemple :
lng_NbCar = GetPrivateProfileString(str_AppName,str_KeyName, str_Defaut, str_ReturnString, 1024, str_Fic)
WritePrivateProfileString str_AppName, str_KeyName, str_valeur, str_Fic