I built this small function that does it but I was wondering if there would be something builtin the .NET Framework that would accomplish the same:

    Private Function StringToHexadecimal(ByVal tcString As String) As String
        Dim lcString As String = ""
        Dim lnCounter As Integer = 0
        For lnCounter = 1 To tcString.Length
            lcString = lcString + Hex(Asc(Mid(tcString, lnCounter, 1)))
        Next
        Return lcString
    End Function