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Function HexToBin(hexvalue)
Dim i, s, ilen, value, values
Set values = CreateObject("Scripting.Dictionary")
values.Add "0", "0000"
values.Add "1", "0001"
values.Add "2", "0010"
values.Add "3", "0011"
values.Add "4", "0100"
values.Add "5", "0101"
values.Add "6", "0110"
values.Add "7", "0111"
values.Add "8", "1000"
values.Add "9", "1001"
values.Add "A", "1010"
values.Add "B", "1011"
values.Add "C", "1100"
values.Add "D", "1101"
values.Add "E", "1110"
values.Add "F", "1111"
value = Null
s = UCase(hexvalue)
If IsHex(s) Then
value = ""
ilen = Len(s)
For i = 1 To ilen
value = value & values(Mid(s, i, 1))
Next
End If
values.RemoveAll
Set values = Nothing
HexToBin = value
End Function