win-serial.vbs

Set WshShell = CreateObject("WScript.Shell")
regKey = "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\"
DigitalProductId = WshShell.RegRead(regKey & "DigitalProductId")

Win8ProductName = "Windows Product Name: " & WshShell.RegRead(regKey & "ProductName") & vbNewLine
Win8ProductID = "Windows Product ID: " & WshShell.RegRead(regKey & "ProductID") & vbNewLine
Win8ProductKey = ConvertToKey(DigitalProductId)
strProductKey ="Windows 8 Key: " & Win8ProductKey
Win8ProductID = Win8ProductName & Win8ProductID & strProductKey

MsgBox(Win8ProductKey)
MsgBox(Win8ProductID)

Function ConvertToKey(regKey)
  Const KeyOffset = 52
  isWin8 = (regKey(66) \ 6) And 1
  regKey(66) = (regKey(66) And &HF7) Or ((isWin8 And 2) * 4)
  j = 24
  Chars = "BCDFGHJKMPQRTVWXY2346789"
  Do
    Cur = 0
    y = 14
    Do
      Cur = Cur * 256
      Cur = regKey(y + KeyOffset) + Cur
      regKey(y + KeyOffset) = (Cur \ 24)
      Cur = Cur Mod 24
      y = y -1
    Loop While y >= 0
    j = j -1
    winKeyOutput = Mid(Chars, Cur + 1, 1) & winKeyOutput
    Last = Cur
  Loop While j >= 0
  If (isWin8 = 1) Then
    keypart1 = Mid(winKeyOutput, 2, Last)
    insert = "N"
    winKeyOutput = Replace(winKeyOutput, keypart1, keypart1 & insert, 2, 1, 0)
    If Last = 0 Then winKeyOutput = insert & winKeyOutput
  End If
  a = Mid(winKeyOutput, 1, 5)
  b = Mid(winKeyOutput, 6, 5)
  c = Mid(winKeyOutput, 11, 5)
  d = Mid(winKeyOutput, 16, 5)
  e = Mid(winKeyOutput, 21, 5)
  ConvertToKey = a & "-" & b & "-" & c & "-" & d & "-" & e
End Function