I am creating something and I need it to find a string and edit the string (1-4 bytes long) a byte after. The string I want to edit it non-unicode. I have a BinaryReader sort of started, but I need help. It is slow and I need it to get faster so I was messing around and some of the code is missing now. Code: Dim search As String = "example " Dim br As New BinaryReader(New FileStream(fileLocation, FileMode.Open, FileAccess.Read)) br.BaseStream.Position = &H10000 search.???