Dim dB_DC As New backUpDataContext
 
        Dim file() As Byte = System.IO.File.ReadAllBytes("C:\xxx.BAK")
 
        Dim NewBackUp As New BackUp With {.BackUpCreated = Now, _
                                          .BackUpFile = file, _
                                          .BackUpID = "0001"}
 
        dB_DC.BackUp.InsertOnSubmit(NewBackUp) 
        dB_DC.SubmitChanges()