Private 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
Private 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

Private Sub Form_Load()
    Dim Ret As String, NC As Long
    WritePrivateProfileString "Проект1", ByVal "ИмяКлюча", ByVal "Вот вам этот текст", "c:\test.ini"
    Ret = String( 255 ,  0 )
    NC = GetPrivateProfileString("Проект1", ByVal "ИмяКлюча", "Default", Ret,  255 , "C:\test.ini")
    If NC <>  0  Then Ret = Left$(Ret, NC)
    MsgBox Ret
End Sub