Hex to binary using VBScript

Question

Is it possible to convert a Hexdump to binary using VBS? I made a program that reads any file as Byte array, then it converts it to Hex. In output Hexdump looks like this

00 00 00 0A 4D

til the end. Now i want to know if i can convert it back to binary and execute it using a VBScript. I will appreciate any help, thank you.

Ansgar Wiechers · Accepted Answer · 2013-12-07 15:25:16Z

3

Something like this should work:

hexstr = "00 00 00 0A 4D"

hexarr = Split(hexstr)
ReDim binarr(UBound(hexarr))

For i = 0 To UBound(hexarr)
  binarr(i) = Chr(CInt("&h" & hexarr(i)))
Next

binstr = Join(binarr, "")

edited Dec 7, 2013 at 15:25

answered Dec 6, 2013 at 12:08

Ansgar Wiechers

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3 Comments

AutomatedChaos Over a year ago

Having an off day? You cannot CInt a string that represents a byte in Hex in VBScript. (And you missed a ) on the ReDim line)

Ansgar Wiechers Over a year ago

@AutomatedChaos Sure you can. You just need to prepend the string with &h, which is what I forgot. Fixed.

AutomatedChaos Over a year ago

Ooh, nice solution. I was thinking about creating a dictionary with all hex pairs in 256 entries and their Chr'd Int value. Then with each pair, you do a lookup in the dictionary and use the item in the array. But this is much better.

Zimba · Accepted Answer · 2020-05-04 19:35:20Z

0

You could make an array out of the hex dump, prepend with "&h", then write the binary file:

Dim File : Set File = CreateObject("Scripting.FileSystemObject").CreateTextFile("Jim.bin")
data = Array(&h00,&h00,&h00,&h0A,&h4D)

for each x in data
File.write chr(x)
next

File.Close

answered May 4, 2020 at 19:35

Zimba

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